81945380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{10067}}^1$

素因数の和:10124

約数の個数: 48

約数和(自身を含む): 192822336

約数和(自身を除く): 110876956

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 4070, 8140, 10067, 20134, 40268, 50335, 100670, 110737, 201340, 221474, 372479, 442948, 553685, 744958, 1107370, 1489916, 1862395, 2214740, 3724790, 4097269, 7449580, 8194538, 16389076, 20486345, 40972690, 81945380]

約数ペア:

[(1, 81945380), (2, 40972690), (4, 20486345), (5, 16389076), (10, 8194538), (11, 7449580), (20, 4097269), (22, 3724790), (37, 2214740), (44, 1862395), (55, 1489916), (74, 1107370), (110, 744958), (148, 553685), (185, 442948), (220, 372479), (370, 221474), (407, 201340), (740, 110737), (814, 100670), (1628, 50335), (2035, 40268), (4070, 20134), (8140, 10067)]