80178475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 113742720

約数和(自身を除く): 33564245

約数列:

[1, 5, 13, 25, 29, 47, 65, 145, 181, 235, 325, 377, 611, 725, 905, 1175, 1363, 1885, 2353, 3055, 4525, 5249, 6815, 8507, 9425, 11765, 15275, 17719, 26245, 34075, 42535, 58825, 68237, 88595, 110591, 131225, 212675, 246703, 341185, 442975, 552955, 1233515, 1705925, 2764775, 3207139, 6167575, 16035695, 80178475]

約数ペア:

[(1, 80178475), (5, 16035695), (13, 6167575), (25, 3207139), (29, 2764775), (47, 1705925), (65, 1233515), (145, 552955), (181, 442975), (235, 341185), (325, 246703), (377, 212675), (611, 131225), (725, 110591), (905, 88595), (1175, 68237), (1363, 58825), (1885, 42535), (2353, 34075), (3055, 26245), (4525, 17719), (5249, 15275), (6815, 11765), (8507, 9425)]