31282020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:131

約数の個数: 288

約数和(自身を含む): 123492096

約数和(自身を除く): 92210076

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 36, 37, 42, 44, 45, 55, 60, 61, 63, 66, 70, 74, 77, 84, 90, 99, 105, 110, 111, 122, 126, 132, 140, 148, 154, 165, 180, 183, 185, 198, 210, 220, 222, 231, 244, 252, 259, 305, 308, 315, 330, 333, 366, 370, 385, 396, 407, 420, 427, 444, 462, 495, 518, 549, 555, 610, 630, 660, 666, 671, 693, 732, 740, 770, 777, 814, 854, 915, 924, 990, 1036, 1098, 1110, 1155, 1220, 1221, 1260, 1281, 1295, 1332, 1342, 1386, 1540, 1554, 1628, 1665, 1708, 1830, 1980, 2013, 2035, 2135, 2196, 2220, 2257, 2310, 2331, 2442, 2562, 2590, 2684, 2745, 2772, 2849, 3108, 3330, 3355, 3465, 3660, 3663, 3843, 3885, 4026, 4070, 4270, 4514, 4620, 4662, 4697, 4884, 5124, 5180, 5490, 5698, 6039, 6105, 6405, 6660, 6710, 6771, 6930, 7326, 7686, 7770, 8052, 8140, 8540, 8547, 9028, 9324, 9394, 10065, 10980, 11285, 11396, 11655, 12078, 12210, 12810, 13420, 13542, 13860, 14091, 14245, 14652, 15372, 15540, 15799, 17094, 18315, 18788, 19215, 20130, 20313, 22570, 23310, 23485, 24156, 24420, 24827, 25620, 25641, 27084, 28182, 28490, 30195, 31598, 33855, 34188, 36630, 38430, 40260, 40626, 42273, 42735, 45140, 46620, 46970, 47397, 49654, 51282, 56364, 56980, 60390, 63196, 67710, 70455, 73260, 74481, 76860, 78995, 81252, 84546, 85470, 93940, 94794, 99308, 101565, 102564, 120780, 124135, 128205, 135420, 140910, 142191, 148962, 157990, 169092, 170940, 173789, 189588, 203130, 211365, 223443, 236985, 248270, 256410, 281820, 284382, 297924, 315980, 347578, 372405, 406260, 422730, 446886, 473970, 496540, 512820, 521367, 568764, 695156, 710955, 744810, 845460, 868945, 893772, 947940, 1042734, 1117215, 1421910, 1489620, 1564101, 1737890, 2085468, 2234430, 2606835, 2843820, 3128202, 3475780, 4468860, 5213670, 6256404, 7820505, 10427340, 15641010, 31282020]

約数ペア:

[(1, 31282020), (2, 15641010), (3, 10427340), (4, 7820505), (5, 6256404), (6, 5213670), (7, 4468860), (9, 3475780), (10, 3128202), (11, 2843820), (12, 2606835), (14, 2234430), (15, 2085468), (18, 1737890), (20, 1564101), (21, 1489620), (22, 1421910), (28, 1117215), (30, 1042734), (33, 947940), (35, 893772), (36, 868945), (37, 845460), (42, 744810), (44, 710955), (45, 695156), (55, 568764), (60, 521367), (61, 512820), (63, 496540), (66, 473970), (70, 446886), (74, 422730), (77, 406260), (84, 372405), (90, 347578), (99, 315980), (105, 297924), (110, 284382), (111, 281820), (122, 256410), (126, 248270), (132, 236985), (140, 223443), (148, 211365), (154, 203130), (165, 189588), (180, 173789), (183, 170940), (185, 169092), (198, 157990), (210, 148962), (220, 142191), (222, 140910), (231, 135420), (244, 128205), (252, 124135), (259, 120780), (305, 102564), (308, 101565), (315, 99308), (330, 94794), (333, 93940), (366, 85470), (370, 84546), (385, 81252), (396, 78995), (407, 76860), (420, 74481), (427, 73260), (444, 70455), (462, 67710), (495, 63196), (518, 60390), (549, 56980), (555, 56364), (610, 51282), (630, 49654), (660, 47397), (666, 46970), (671, 46620), (693, 45140), (732, 42735), (740, 42273), (770, 40626), (777, 40260), (814, 38430), (854, 36630), (915, 34188), (924, 33855), (990, 31598), (1036, 30195), (1098, 28490), (1110, 28182), (1155, 27084), (1220, 25641), (1221, 25620), (1260, 24827), (1281, 24420), (1295, 24156), (1332, 23485), (1342, 23310), (1386, 22570), (1540, 20313), (1554, 20130), (1628, 19215), (1665, 18788), (1708, 18315), (1830, 17094), (1980, 15799), (2013, 15540), (2035, 15372), (2135, 14652), (2196, 14245), (2220, 14091), (2257, 13860), (2310, 13542), (2331, 13420), (2442, 12810), (2562, 12210), (2590, 12078), (2684, 11655), (2745, 11396), (2772, 11285), (2849, 10980), (3108, 10065), (3330, 9394), (3355, 9324), (3465, 9028), (3660, 8547), (3663, 8540), (3843, 8140), (3885, 8052), (4026, 7770), (4070, 7686), (4270, 7326), (4514, 6930), (4620, 6771), (4662, 6710), (4697, 6660), (4884, 6405), (5124, 6105), (5180, 6039), (5490, 5698)]