27868180180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{220511}}^1$

素因数の和:220680

約数の個数: 48

約数和(自身を含む): 60014545920

約数和(自身を除く): 32146365740

約数列:

[1, 2, 4, 5, 10, 20, 71, 89, 142, 178, 284, 355, 356, 445, 710, 890, 1420, 1780, 6319, 12638, 25276, 31595, 63190, 126380, 220511, 441022, 882044, 1102555, 2205110, 4410220, 15656281, 19625479, 31312562, 39250958, 62625124, 78281405, 78501916, 98127395, 156562810, 196254790, 313125620, 392509580, 1393409009, 2786818018, 5573636036, 6967045045, 13934090090, 27868180180]

約数ペア:

[(1, 27868180180), (2, 13934090090), (4, 6967045045), (5, 5573636036), (10, 2786818018), (20, 1393409009), (71, 392509580), (89, 313125620), (142, 196254790), (178, 156562810), (284, 98127395), (355, 78501916), (356, 78281405), (445, 62625124), (710, 39250958), (890, 31312562), (1420, 19625479), (1780, 15656281), (6319, 4410220), (12638, 2205110), (25276, 1102555), (31595, 882044), (63190, 441022), (126380, 220511)]