19012175

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 29706432

約数和(自身を除く): 10694257

約数列:

[1, 5, 7, 13, 25, 35, 61, 65, 91, 137, 175, 305, 325, 427, 455, 685, 793, 959, 1525, 1781, 2135, 2275, 3425, 3965, 4795, 5551, 8357, 8905, 10675, 12467, 19825, 23975, 27755, 41785, 44525, 58499, 62335, 108641, 138775, 208925, 292495, 311675, 543205, 760487, 1462475, 2716025, 3802435, 19012175]

約数ペア:

[(1, 19012175), (5, 3802435), (7, 2716025), (13, 1462475), (25, 760487), (35, 543205), (61, 311675), (65, 292495), (91, 208925), (137, 138775), (175, 108641), (305, 62335), (325, 58499), (427, 44525), (455, 41785), (685, 27755), (793, 23975), (959, 19825), (1525, 12467), (1781, 10675), (2135, 8905), (2275, 8357), (3425, 5551), (3965, 4795)]