2786740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 6531840

約数和(自身を除く): 3745100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 212, 220, 239, 265, 478, 530, 583, 956, 1060, 1166, 1195, 2332, 2390, 2629, 2915, 4780, 5258, 5830, 10516, 11660, 12667, 13145, 25334, 26290, 50668, 52580, 63335, 126670, 139337, 253340, 278674, 557348, 696685, 1393370, 2786740]

約数ペア:

[(1, 2786740), (2, 1393370), (4, 696685), (5, 557348), (10, 278674), (11, 253340), (20, 139337), (22, 126670), (44, 63335), (53, 52580), (55, 50668), (106, 26290), (110, 25334), (212, 13145), (220, 12667), (239, 11660), (265, 10516), (478, 5830), (530, 5258), (583, 4780), (956, 2915), (1060, 2629), (1166, 2390), (1195, 2332)]