220142455

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{449}}^1$

素因数の和:883

約数の個数: 32

約数和(自身を含む): 300888000

約数和(自身を除く): 80745545

約数列:

[1, 5, 13, 19, 65, 95, 247, 397, 449, 1235, 1985, 2245, 5161, 5837, 7543, 8531, 25805, 29185, 37715, 42655, 98059, 110903, 178253, 490295, 554515, 891265, 2317289, 3386807, 11586445, 16934035, 44028491, 220142455]

約数ペア:

[(1, 220142455), (5, 44028491), (13, 16934035), (19, 11586445), (65, 3386807), (95, 2317289), (247, 891265), (397, 554515), (449, 490295), (1235, 178253), (1985, 110903), (2245, 98059), (5161, 42655), (5837, 37715), (7543, 29185), (8531, 25805)]