20804927660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1409}}^1\times {\mathrm{1637}}^1$

素因数の和:3107

約数の個数: 96

約数和(自身を含む): 48889189440

約数和(自身を除く): 28084261780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1409, 1637, 1804, 2255, 2818, 3274, 4510, 5636, 6548, 7045, 8185, 9020, 14090, 15499, 16370, 18007, 28180, 30998, 32740, 36014, 57769, 61996, 67117, 72028, 77495, 90035, 115538, 134234, 154990, 180070, 231076, 268468, 288845, 309980, 335585, 360140, 577690, 635459, 671170, 738287, 1155380, 1270918, 1342340, 1476574, 2306533, 2541836, 2953148, 3177295, 3691435, 4613066, 6354590, 7382870, 9226132, 11532665, 12709180, 14765740, 23065330, 25371863, 46130660, 50743726, 94567853, 101487452, 126859315, 189135706, 253718630, 378271412, 472839265, 507437260, 945678530, 1040246383, 1891357060, 2080492766, 4160985532, 5201231915, 10402463830, 20804927660]

約数ペア:

[(1, 20804927660), (2, 10402463830), (4, 5201231915), (5, 4160985532), (10, 2080492766), (11, 1891357060), (20, 1040246383), (22, 945678530), (41, 507437260), (44, 472839265), (55, 378271412), (82, 253718630), (110, 189135706), (164, 126859315), (205, 101487452), (220, 94567853), (410, 50743726), (451, 46130660), (820, 25371863), (902, 23065330), (1409, 14765740), (1637, 12709180), (1804, 11532665), (2255, 9226132), (2818, 7382870), (3274, 6354590), (4510, 4613066), (5636, 3691435), (6548, 3177295), (7045, 2953148), (8185, 2541836), (9020, 2306533), (14090, 1476574), (15499, 1342340), (16370, 1270918), (18007, 1155380), (28180, 738287), (30998, 671170), (32740, 635459), (36014, 577690), (57769, 360140), (61996, 335585), (67117, 309980), (72028, 288845), (77495, 268468), (90035, 231076), (115538, 180070), (134234, 154990)]