77641820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{823}}^1$

素因数の和:974

約数の個数: 48

約数和(自身を含む): 168194880

約数和(自身を除く): 90553060

約数列:

[1, 2, 4, 5, 10, 20, 53, 89, 106, 178, 212, 265, 356, 445, 530, 823, 890, 1060, 1646, 1780, 3292, 4115, 4717, 8230, 9434, 16460, 18868, 23585, 43619, 47170, 73247, 87238, 94340, 146494, 174476, 218095, 292988, 366235, 436190, 732470, 872380, 1464940, 3882091, 7764182, 15528364, 19410455, 38820910, 77641820]

約数ペア:

[(1, 77641820), (2, 38820910), (4, 19410455), (5, 15528364), (10, 7764182), (20, 3882091), (53, 1464940), (89, 872380), (106, 732470), (178, 436190), (212, 366235), (265, 292988), (356, 218095), (445, 174476), (530, 146494), (823, 94340), (890, 87238), (1060, 73247), (1646, 47170), (1780, 43619), (3292, 23585), (4115, 18868), (4717, 16460), (8230, 9434)]