30491960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{757}}^1$

素因数の和:840

約数の個数: 64

約数和(自身を含む): 73677600

約数和(自身を除く): 43185640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 53, 76, 95, 106, 152, 190, 212, 265, 380, 424, 530, 757, 760, 1007, 1060, 1514, 2014, 2120, 3028, 3785, 4028, 5035, 6056, 7570, 8056, 10070, 14383, 15140, 20140, 28766, 30280, 40121, 40280, 57532, 71915, 80242, 115064, 143830, 160484, 200605, 287660, 320968, 401210, 575320, 762299, 802420, 1524598, 1604840, 3049196, 3811495, 6098392, 7622990, 15245980, 30491960]

約数ペア:

[(1, 30491960), (2, 15245980), (4, 7622990), (5, 6098392), (8, 3811495), (10, 3049196), (19, 1604840), (20, 1524598), (38, 802420), (40, 762299), (53, 575320), (76, 401210), (95, 320968), (106, 287660), (152, 200605), (190, 160484), (212, 143830), (265, 115064), (380, 80242), (424, 71915), (530, 57532), (757, 40280), (760, 40121), (1007, 30280), (1060, 28766), (1514, 20140), (2014, 15140), (2120, 14383), (3028, 10070), (3785, 8056), (4028, 7570), (5035, 6056)]