85261820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{2731}}^1$

素因数の和:2970

約数の個数: 48

約数和(自身を含む): 205621248

約数和(自身を除く): 120359428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 446, 892, 1115, 1561, 2230, 2731, 3122, 4460, 5462, 6244, 7805, 10924, 13655, 15610, 19117, 27310, 31220, 38234, 54620, 76468, 95585, 191170, 382340, 609013, 1218026, 2436052, 3045065, 4263091, 6090130, 8526182, 12180260, 17052364, 21315455, 42630910, 85261820]

約数ペア:

[(1, 85261820), (2, 42630910), (4, 21315455), (5, 17052364), (7, 12180260), (10, 8526182), (14, 6090130), (20, 4263091), (28, 3045065), (35, 2436052), (70, 1218026), (140, 609013), (223, 382340), (446, 191170), (892, 95585), (1115, 76468), (1561, 54620), (2230, 38234), (2731, 31220), (3122, 27310), (4460, 19117), (5462, 15610), (6244, 13655), (7805, 10924)]