80811225

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{317}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 159936192

約数和(自身を除く): 79124967

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 103, 165, 225, 275, 309, 317, 495, 515, 825, 927, 951, 1133, 1545, 1585, 2475, 2575, 2853, 3399, 3487, 4635, 4755, 5665, 7725, 7925, 10197, 10461, 14265, 16995, 17435, 23175, 23775, 28325, 31383, 32651, 50985, 52305, 71325, 84975, 87175, 97953, 156915, 163255, 254925, 261525, 293859, 359161, 489765, 784575, 816275, 1077483, 1469295, 1795805, 2448825, 3232449, 5387415, 7346475, 8979025, 16162245, 26937075, 80811225]

約数ペア:

[(1, 80811225), (3, 26937075), (5, 16162245), (9, 8979025), (11, 7346475), (15, 5387415), (25, 3232449), (33, 2448825), (45, 1795805), (55, 1469295), (75, 1077483), (99, 816275), (103, 784575), (165, 489765), (225, 359161), (275, 293859), (309, 261525), (317, 254925), (495, 163255), (515, 156915), (825, 97953), (927, 87175), (951, 84975), (1133, 71325), (1545, 52305), (1585, 50985), (2475, 32651), (2575, 31383), (2853, 28325), (3399, 23775), (3487, 23175), (4635, 17435), (4755, 16995), (5665, 14265), (7725, 10461), (7925, 10197)]