74199920

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1889}}^1$

素因数の和:2393

約数の個数: 40

約数和(自身を含む): 172957680

約数和(自身を除く): 98757760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1889, 1964, 2455, 3778, 3928, 4910, 7556, 7856, 9445, 9820, 15112, 18890, 19640, 30224, 37780, 39280, 75560, 151120, 927499, 1854998, 3709996, 4637495, 7419992, 9274990, 14839984, 18549980, 37099960, 74199920]

約数ペア:

[(1, 74199920), (2, 37099960), (4, 18549980), (5, 14839984), (8, 9274990), (10, 7419992), (16, 4637495), (20, 3709996), (40, 1854998), (80, 927499), (491, 151120), (982, 75560), (1889, 39280), (1964, 37780), (2455, 30224), (3778, 19640), (3928, 18890), (4910, 15112), (7556, 9820), (7856, 9445)]