81814020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{18679}}^1$

素因数の和:18764

約数の個数: 48

約数和(自身を含む): 232229760

約数和(自身を除く): 150415740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 219, 292, 365, 438, 730, 876, 1095, 1460, 2190, 4380, 18679, 37358, 56037, 74716, 93395, 112074, 186790, 224148, 280185, 373580, 560370, 1120740, 1363567, 2727134, 4090701, 5454268, 6817835, 8181402, 13635670, 16362804, 20453505, 27271340, 40907010, 81814020]

約数ペア:

[(1, 81814020), (2, 40907010), (3, 27271340), (4, 20453505), (5, 16362804), (6, 13635670), (10, 8181402), (12, 6817835), (15, 5454268), (20, 4090701), (30, 2727134), (60, 1363567), (73, 1120740), (146, 560370), (219, 373580), (292, 280185), (365, 224148), (438, 186790), (730, 112074), (876, 93395), (1095, 74716), (1460, 56037), (2190, 37358), (4380, 18679)]