20180016

素因数分解:

$2^4\times 3^4\times {\mathrm{23}}^1\times {\mathrm{677}}^1$

素因数の和:720

約数の個数: 100

約数和(自身を含む): 61036272

約数和(自身を除く): 40856256

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 27, 36, 46, 48, 54, 69, 72, 81, 92, 108, 138, 144, 162, 184, 207, 216, 276, 324, 368, 414, 432, 552, 621, 648, 677, 828, 1104, 1242, 1296, 1354, 1656, 1863, 2031, 2484, 2708, 3312, 3726, 4062, 4968, 5416, 6093, 7452, 8124, 9936, 10832, 12186, 14904, 15571, 16248, 18279, 24372, 29808, 31142, 32496, 36558, 46713, 48744, 54837, 62284, 73116, 93426, 97488, 109674, 124568, 140139, 146232, 186852, 219348, 249136, 280278, 292464, 373704, 420417, 438696, 560556, 747408, 840834, 877392, 1121112, 1261251, 1681668, 2242224, 2522502, 3363336, 5045004, 6726672, 10090008, 20180016]

約数ペア:

[(1, 20180016), (2, 10090008), (3, 6726672), (4, 5045004), (6, 3363336), (8, 2522502), (9, 2242224), (12, 1681668), (16, 1261251), (18, 1121112), (23, 877392), (24, 840834), (27, 747408), (36, 560556), (46, 438696), (48, 420417), (54, 373704), (69, 292464), (72, 280278), (81, 249136), (92, 219348), (108, 186852), (138, 146232), (144, 140139), (162, 124568), (184, 109674), (207, 97488), (216, 93426), (276, 73116), (324, 62284), (368, 54837), (414, 48744), (432, 46713), (552, 36558), (621, 32496), (648, 31142), (677, 29808), (828, 24372), (1104, 18279), (1242, 16248), (1296, 15571), (1354, 14904), (1656, 12186), (1863, 10832), (2031, 9936), (2484, 8124), (2708, 7452), (3312, 6093), (3726, 5416), (4062, 4968)]