20810361320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1\times {\mathrm{2851}}^1$

素因数の和:3199

約数の個数: 128

約数和(自身を含む): 54210816000

約数和(自身を除く): 33400454680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 199, 262, 280, 398, 524, 655, 796, 917, 995, 1048, 1310, 1393, 1592, 1834, 1990, 2620, 2786, 2851, 3668, 3980, 4585, 5240, 5572, 5702, 6965, 7336, 7960, 9170, 11144, 11404, 13930, 14255, 18340, 19957, 22808, 26069, 27860, 28510, 36680, 39914, 52138, 55720, 57020, 79828, 99785, 104276, 114040, 130345, 159656, 182483, 199570, 208552, 260690, 364966, 373481, 399140, 521380, 567349, 729932, 746962, 798280, 912415, 1042760, 1134698, 1459864, 1493924, 1824830, 1867405, 2269396, 2614367, 2836745, 2987848, 3649660, 3734810, 3971443, 4538792, 5228734, 5673490, 7299320, 7469620, 7942886, 10457468, 11346980, 13071835, 14939240, 15885772, 19857215, 20914936, 22693960, 26143670, 31771544, 39714430, 52287340, 74322719, 79428860, 104574680, 148645438, 158857720, 297290876, 371613595, 520259033, 594581752, 743227190, 1040518066, 1486454380, 2081036132, 2601295165, 2972908760, 4162072264, 5202590330, 10405180660, 20810361320]

約数ペア:

[(1, 20810361320), (2, 10405180660), (4, 5202590330), (5, 4162072264), (7, 2972908760), (8, 2601295165), (10, 2081036132), (14, 1486454380), (20, 1040518066), (28, 743227190), (35, 594581752), (40, 520259033), (56, 371613595), (70, 297290876), (131, 158857720), (140, 148645438), (199, 104574680), (262, 79428860), (280, 74322719), (398, 52287340), (524, 39714430), (655, 31771544), (796, 26143670), (917, 22693960), (995, 20914936), (1048, 19857215), (1310, 15885772), (1393, 14939240), (1592, 13071835), (1834, 11346980), (1990, 10457468), (2620, 7942886), (2786, 7469620), (2851, 7299320), (3668, 5673490), (3980, 5228734), (4585, 4538792), (5240, 3971443), (5572, 3734810), (5702, 3649660), (6965, 2987848), (7336, 2836745), (7960, 2614367), (9170, 2269396), (11144, 1867405), (11404, 1824830), (13930, 1493924), (14255, 1459864), (18340, 1134698), (19957, 1042760), (22808, 912415), (26069, 798280), (27860, 746962), (28510, 729932), (36680, 567349), (39914, 521380), (52138, 399140), (55720, 373481), (57020, 364966), (79828, 260690), (99785, 208552), (104276, 199570), (114040, 182483), (130345, 159656)]