18903120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{997}}^1$

素因数の和:1092

約数の個数: 80

約数和(自身を含む): 59400960

約数和(自身を除く): 40497840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 79, 80, 120, 158, 237, 240, 316, 395, 474, 632, 790, 948, 997, 1185, 1264, 1580, 1896, 1994, 2370, 2991, 3160, 3792, 3988, 4740, 4985, 5982, 6320, 7976, 9480, 9970, 11964, 14955, 15952, 18960, 19940, 23928, 29910, 39880, 47856, 59820, 78763, 79760, 119640, 157526, 236289, 239280, 315052, 393815, 472578, 630104, 787630, 945156, 1181445, 1260208, 1575260, 1890312, 2362890, 3150520, 3780624, 4725780, 6301040, 9451560, 18903120]

約数ペア:

[(1, 18903120), (2, 9451560), (3, 6301040), (4, 4725780), (5, 3780624), (6, 3150520), (8, 2362890), (10, 1890312), (12, 1575260), (15, 1260208), (16, 1181445), (20, 945156), (24, 787630), (30, 630104), (40, 472578), (48, 393815), (60, 315052), (79, 239280), (80, 236289), (120, 157526), (158, 119640), (237, 79760), (240, 78763), (316, 59820), (395, 47856), (474, 39880), (632, 29910), (790, 23928), (948, 19940), (997, 18960), (1185, 15952), (1264, 14955), (1580, 11964), (1896, 9970), (1994, 9480), (2370, 7976), (2991, 6320), (3160, 5982), (3792, 4985), (3988, 4740)]