207701980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{1367}}^1$

素因数の和:1554

約数の個数: 48

約数和(自身を含む): 446777856

約数和(自身を除く): 239075876

約数列:

[1, 2, 4, 5, 10, 20, 71, 107, 142, 214, 284, 355, 428, 535, 710, 1070, 1367, 1420, 2140, 2734, 5468, 6835, 7597, 13670, 15194, 27340, 30388, 37985, 75970, 97057, 146269, 151940, 194114, 292538, 388228, 485285, 585076, 731345, 970570, 1462690, 1941140, 2925380, 10385099, 20770198, 41540396, 51925495, 103850990, 207701980]

約数ペア:

[(1, 207701980), (2, 103850990), (4, 51925495), (5, 41540396), (10, 20770198), (20, 10385099), (71, 2925380), (107, 1941140), (142, 1462690), (214, 970570), (284, 731345), (355, 585076), (428, 485285), (535, 388228), (710, 292538), (1070, 194114), (1367, 151940), (1420, 146269), (2140, 97057), (2734, 75970), (5468, 37985), (6835, 30388), (7597, 27340), (13670, 15194)]