15681575

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 24540096

約数和(自身を除く): 8858521

約数列:

[1, 5, 7, 13, 25, 35, 61, 65, 91, 113, 175, 305, 325, 427, 455, 565, 791, 793, 1469, 1525, 2135, 2275, 2825, 3955, 3965, 5551, 6893, 7345, 10283, 10675, 19775, 19825, 27755, 34465, 36725, 48251, 51415, 89609, 138775, 172325, 241255, 257075, 448045, 627263, 1206275, 2240225, 3136315, 15681575]

約数ペア:

[(1, 15681575), (5, 3136315), (7, 2240225), (13, 1206275), (25, 627263), (35, 448045), (61, 257075), (65, 241255), (91, 172325), (113, 138775), (175, 89609), (305, 51415), (325, 48251), (427, 36725), (455, 34465), (565, 27755), (791, 19825), (793, 19775), (1469, 10675), (1525, 10283), (2135, 7345), (2275, 6893), (2825, 5551), (3955, 3965)]