20403721780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{45127}}^1$

素因数の和:45233

約数の個数: 96

約数和(自身を含む): 48400321536

約数和(自身を除く): 27996599756

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 47, 52, 65, 74, 94, 130, 148, 185, 188, 235, 260, 370, 470, 481, 611, 740, 940, 962, 1222, 1739, 1924, 2405, 2444, 3055, 3478, 4810, 6110, 6956, 8695, 9620, 12220, 17390, 22607, 34780, 45127, 45214, 90254, 90428, 113035, 180508, 225635, 226070, 451270, 452140, 586651, 902540, 1173302, 1669699, 2120969, 2346604, 2933255, 3339398, 4241938, 5866510, 6678796, 8348495, 8483876, 10604845, 11733020, 16696990, 21209690, 21706087, 27572597, 33393980, 42419380, 43412174, 55145194, 78475853, 86824348, 108530435, 110290388, 137862985, 156951706, 217060870, 275725970, 313903412, 392379265, 434121740, 551451940, 784758530, 1020186089, 1569517060, 2040372178, 4080744356, 5100930445, 10201860890, 20403721780]

約数ペア:

[(1, 20403721780), (2, 10201860890), (4, 5100930445), (5, 4080744356), (10, 2040372178), (13, 1569517060), (20, 1020186089), (26, 784758530), (37, 551451940), (47, 434121740), (52, 392379265), (65, 313903412), (74, 275725970), (94, 217060870), (130, 156951706), (148, 137862985), (185, 110290388), (188, 108530435), (235, 86824348), (260, 78475853), (370, 55145194), (470, 43412174), (481, 42419380), (611, 33393980), (740, 27572597), (940, 21706087), (962, 21209690), (1222, 16696990), (1739, 11733020), (1924, 10604845), (2405, 8483876), (2444, 8348495), (3055, 6678796), (3478, 5866510), (4810, 4241938), (6110, 3339398), (6956, 2933255), (8695, 2346604), (9620, 2120969), (12220, 1669699), (17390, 1173302), (22607, 902540), (34780, 586651), (45127, 452140), (45214, 451270), (90254, 226070), (90428, 225635), (113035, 180508)]