521391420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{647}}^1$

素因数の和:721

約数の個数: 216

約数和(自身を含む): 1788145632

約数和(自身を除く): 1266754212

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 37, 44, 45, 55, 60, 66, 74, 90, 99, 110, 111, 121, 132, 148, 165, 180, 185, 198, 220, 222, 242, 330, 333, 363, 370, 396, 407, 444, 484, 495, 555, 605, 647, 660, 666, 726, 740, 814, 990, 1089, 1110, 1210, 1221, 1294, 1332, 1452, 1628, 1665, 1815, 1941, 1980, 2035, 2178, 2220, 2420, 2442, 2588, 3235, 3330, 3630, 3663, 3882, 4070, 4356, 4477, 4884, 5445, 5823, 6105, 6470, 6660, 7117, 7260, 7326, 7764, 8140, 8954, 9705, 10890, 11646, 12210, 12940, 13431, 14234, 14652, 17908, 18315, 19410, 21351, 21780, 22385, 23292, 23939, 24420, 26862, 28468, 29115, 35585, 36630, 38820, 40293, 42702, 44770, 47878, 53724, 58230, 64053, 67155, 71170, 71817, 73260, 78287, 80586, 85404, 89540, 95756, 106755, 116460, 119695, 128106, 134310, 142340, 143634, 156574, 161172, 201465, 213510, 215451, 234861, 239390, 256212, 263329, 268620, 287268, 313148, 320265, 359085, 391435, 402930, 427020, 430902, 469722, 478780, 526658, 640530, 704583, 718170, 782870, 789987, 805860, 861804, 939444, 1053316, 1077255, 1174305, 1281060, 1316645, 1409166, 1436340, 1565740, 1579974, 2154510, 2348610, 2369961, 2633290, 2818332, 2896619, 3159948, 3522915, 3949935, 4309020, 4697220, 4739922, 5266580, 5793238, 7045830, 7899870, 8689857, 9479844, 11586476, 11849805, 14091660, 14483095, 15799740, 17379714, 23699610, 26069571, 28966190, 34759428, 43449285, 47399220, 52139142, 57932380, 86898570, 104278284, 130347855, 173797140, 260695710, 521391420]

約数ペア:

[(1, 521391420), (2, 260695710), (3, 173797140), (4, 130347855), (5, 104278284), (6, 86898570), (9, 57932380), (10, 52139142), (11, 47399220), (12, 43449285), (15, 34759428), (18, 28966190), (20, 26069571), (22, 23699610), (30, 17379714), (33, 15799740), (36, 14483095), (37, 14091660), (44, 11849805), (45, 11586476), (55, 9479844), (60, 8689857), (66, 7899870), (74, 7045830), (90, 5793238), (99, 5266580), (110, 4739922), (111, 4697220), (121, 4309020), (132, 3949935), (148, 3522915), (165, 3159948), (180, 2896619), (185, 2818332), (198, 2633290), (220, 2369961), (222, 2348610), (242, 2154510), (330, 1579974), (333, 1565740), (363, 1436340), (370, 1409166), (396, 1316645), (407, 1281060), (444, 1174305), (484, 1077255), (495, 1053316), (555, 939444), (605, 861804), (647, 805860), (660, 789987), (666, 782870), (726, 718170), (740, 704583), (814, 640530), (990, 526658), (1089, 478780), (1110, 469722), (1210, 430902), (1221, 427020), (1294, 402930), (1332, 391435), (1452, 359085), (1628, 320265), (1665, 313148), (1815, 287268), (1941, 268620), (1980, 263329), (2035, 256212), (2178, 239390), (2220, 234861), (2420, 215451), (2442, 213510), (2588, 201465), (3235, 161172), (3330, 156574), (3630, 143634), (3663, 142340), (3882, 134310), (4070, 128106), (4356, 119695), (4477, 116460), (4884, 106755), (5445, 95756), (5823, 89540), (6105, 85404), (6470, 80586), (6660, 78287), (7117, 73260), (7260, 71817), (7326, 71170), (7764, 67155), (8140, 64053), (8954, 58230), (9705, 53724), (10890, 47878), (11646, 44770), (12210, 42702), (12940, 40293), (13431, 38820), (14234, 36630), (14652, 35585), (17908, 29115), (18315, 28468), (19410, 26862), (21351, 24420), (21780, 23939), (22385, 23292)]