891096860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{71}}^1\times {\mathrm{653}}^1$

素因数の和:795

約数の個数: 72

約数和(自身を含む): 1963852128

約数和(自身を除く): 1072755268

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 620, 653, 710, 961, 1306, 1420, 1922, 2201, 2612, 3265, 3844, 4402, 4805, 6530, 8804, 9610, 11005, 13060, 19220, 20243, 22010, 40486, 44020, 46363, 68231, 80972, 92726, 101215, 136462, 185452, 202430, 231815, 272924, 341155, 404860, 463630, 627533, 682310, 927260, 1255066, 1364620, 1437253, 2510132, 2874506, 3137665, 5749012, 6275330, 7186265, 12550660, 14372530, 28745060, 44554843, 89109686, 178219372, 222774215, 445548430, 891096860]

約数ペア:

[(1, 891096860), (2, 445548430), (4, 222774215), (5, 178219372), (10, 89109686), (20, 44554843), (31, 28745060), (62, 14372530), (71, 12550660), (124, 7186265), (142, 6275330), (155, 5749012), (284, 3137665), (310, 2874506), (355, 2510132), (620, 1437253), (653, 1364620), (710, 1255066), (961, 927260), (1306, 682310), (1420, 627533), (1922, 463630), (2201, 404860), (2612, 341155), (3265, 272924), (3844, 231815), (4402, 202430), (4805, 185452), (6530, 136462), (8804, 101215), (9610, 92726), (11005, 80972), (13060, 68231), (19220, 46363), (20243, 44020), (22010, 40486)]