201968255

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{521}}^1$

素因数の和:659

約数の個数: 32

約数和(自身を含む): 260983296

約数和(自身を除く): 59015041

約数列:

[1, 5, 31, 41, 61, 155, 205, 305, 521, 1271, 1891, 2501, 2605, 6355, 9455, 12505, 16151, 21361, 31781, 77531, 80755, 106805, 158905, 387655, 662191, 985211, 1303021, 3310955, 4926055, 6515105, 40393651, 201968255]

約数ペア:

[(1, 201968255), (5, 40393651), (31, 6515105), (41, 4926055), (61, 3310955), (155, 1303021), (205, 985211), (305, 662191), (521, 387655), (1271, 158905), (1891, 106805), (2501, 80755), (2605, 77531), (6355, 31781), (9455, 21361), (12505, 16151)]