25384040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1861}}^1$

素因数の和:1914

約数の個数: 64

約数和(自身を含む): 64350720

約数和(自身を除く): 38966680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 1861, 2728, 3410, 3722, 6820, 7444, 9305, 13640, 14888, 18610, 20471, 37220, 40942, 57691, 74440, 81884, 102355, 115382, 163768, 204710, 230764, 288455, 409420, 461528, 576910, 634601, 818840, 1153820, 1269202, 2307640, 2538404, 3173005, 5076808, 6346010, 12692020, 25384040]

約数ペア:

[(1, 25384040), (2, 12692020), (4, 6346010), (5, 5076808), (8, 3173005), (10, 2538404), (11, 2307640), (20, 1269202), (22, 1153820), (31, 818840), (40, 634601), (44, 576910), (55, 461528), (62, 409420), (88, 288455), (110, 230764), (124, 204710), (155, 163768), (220, 115382), (248, 102355), (310, 81884), (341, 74440), (440, 57691), (620, 40942), (682, 37220), (1240, 20471), (1364, 18610), (1705, 14888), (1861, 13640), (2728, 9305), (3410, 7444), (3722, 6820)]