31289880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1091}}^1$

素因数の和:1344

約数の個数: 64

約数和(自身を含む): 94348800

約数和(自身を除く): 63058920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 239, 478, 717, 956, 1091, 1195, 1434, 1912, 2182, 2390, 2868, 3273, 3585, 4364, 4780, 5455, 5736, 6546, 7170, 8728, 9560, 10910, 13092, 14340, 16365, 21820, 26184, 28680, 32730, 43640, 65460, 130920, 260749, 521498, 782247, 1042996, 1303745, 1564494, 2085992, 2607490, 3128988, 3911235, 5214980, 6257976, 7822470, 10429960, 15644940, 31289880]

約数ペア:

[(1, 31289880), (2, 15644940), (3, 10429960), (4, 7822470), (5, 6257976), (6, 5214980), (8, 3911235), (10, 3128988), (12, 2607490), (15, 2085992), (20, 1564494), (24, 1303745), (30, 1042996), (40, 782247), (60, 521498), (120, 260749), (239, 130920), (478, 65460), (717, 43640), (956, 32730), (1091, 28680), (1195, 26184), (1434, 21820), (1912, 16365), (2182, 14340), (2390, 13092), (2868, 10910), (3273, 9560), (3585, 8728), (4364, 7170), (4780, 6546), (5455, 5736)]