81378120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{359}}^1\times {\mathrm{1889}}^1$

素因数の和:2262

約数の個数: 64

約数和(自身を含む): 244944000

約数和(自身を除く): 163565880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 359, 718, 1077, 1436, 1795, 1889, 2154, 2872, 3590, 3778, 4308, 5385, 5667, 7180, 7556, 8616, 9445, 10770, 11334, 14360, 15112, 18890, 21540, 22668, 28335, 37780, 43080, 45336, 56670, 75560, 113340, 226680, 678151, 1356302, 2034453, 2712604, 3390755, 4068906, 5425208, 6781510, 8137812, 10172265, 13563020, 16275624, 20344530, 27126040, 40689060, 81378120]

約数ペア:

[(1, 81378120), (2, 40689060), (3, 27126040), (4, 20344530), (5, 16275624), (6, 13563020), (8, 10172265), (10, 8137812), (12, 6781510), (15, 5425208), (20, 4068906), (24, 3390755), (30, 2712604), (40, 2034453), (60, 1356302), (120, 678151), (359, 226680), (718, 113340), (1077, 75560), (1436, 56670), (1795, 45336), (1889, 43080), (2154, 37780), (2872, 28335), (3590, 22668), (3778, 21540), (4308, 18890), (5385, 15112), (5667, 14360), (7180, 11334), (7556, 10770), (8616, 9445)]