18987112495

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{461}}^1\times {\mathrm{2767}}^1$

素因数の和:3475

約数の個数: 32

約数和(自身を含む): 24706725120

約数和(自身を除く): 5719612625

約数列:

[1, 5, 13, 65, 229, 461, 1145, 2305, 2767, 2977, 5993, 13835, 14885, 29965, 35971, 105569, 179855, 527845, 633643, 1275587, 1372397, 3168215, 6377935, 6861985, 8237359, 16582631, 41186795, 82913155, 292109423, 1460547115, 3797422499, 18987112495]

約数ペア:

[(1, 18987112495), (5, 3797422499), (13, 1460547115), (65, 292109423), (229, 82913155), (461, 41186795), (1145, 16582631), (2305, 8237359), (2767, 6861985), (2977, 6377935), (5993, 3168215), (13835, 1372397), (14885, 1275587), (29965, 633643), (35971, 527845), (105569, 179855)]