197857465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 262483200

約数和(自身を除く): 64625735

約数列:

[1, 5, 13, 61, 65, 139, 305, 359, 695, 793, 1795, 1807, 3965, 4667, 8479, 9035, 21899, 23335, 42395, 49901, 109495, 110227, 249505, 284687, 551135, 648713, 1423435, 3043961, 3243565, 15219805, 39571493, 197857465]

約数ペア:

[(1, 197857465), (5, 39571493), (13, 15219805), (61, 3243565), (65, 3043961), (139, 1423435), (305, 648713), (359, 551135), (695, 284687), (793, 249505), (1795, 110227), (1807, 109495), (3965, 49901), (4667, 42395), (8479, 23335), (9035, 21899)]