90606680

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{541}}^1$

素因数の和:684

約数の個数: 64

約数和(自身を含む): 210729600

約数和(自身を除く): 120122920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 79, 106, 158, 212, 265, 316, 395, 424, 530, 541, 632, 790, 1060, 1082, 1580, 2120, 2164, 2705, 3160, 4187, 4328, 5410, 8374, 10820, 16748, 20935, 21640, 28673, 33496, 41870, 42739, 57346, 83740, 85478, 114692, 143365, 167480, 170956, 213695, 229384, 286730, 341912, 427390, 573460, 854780, 1146920, 1709560, 2265167, 4530334, 9060668, 11325835, 18121336, 22651670, 45303340, 90606680]

約数ペア:

[(1, 90606680), (2, 45303340), (4, 22651670), (5, 18121336), (8, 11325835), (10, 9060668), (20, 4530334), (40, 2265167), (53, 1709560), (79, 1146920), (106, 854780), (158, 573460), (212, 427390), (265, 341912), (316, 286730), (395, 229384), (424, 213695), (530, 170956), (541, 167480), (632, 143365), (790, 114692), (1060, 85478), (1082, 83740), (1580, 57346), (2120, 42739), (2164, 41870), (2705, 33496), (3160, 28673), (4187, 21640), (4328, 20935), (5410, 16748), (8374, 10820)]