81415750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:131

約数の個数: 96

約数和(自身を含む): 172658304

約数和(自身を除く): 91242554

約数列:

[1, 2, 5, 10, 13, 25, 26, 41, 47, 50, 65, 82, 94, 125, 130, 169, 205, 235, 250, 325, 338, 410, 470, 533, 611, 650, 845, 1025, 1066, 1175, 1222, 1625, 1690, 1927, 2050, 2350, 2665, 3055, 3250, 3854, 4225, 5125, 5330, 5875, 6110, 6929, 7943, 8450, 9635, 10250, 11750, 13325, 13858, 15275, 15886, 19270, 21125, 25051, 26650, 30550, 34645, 39715, 42250, 48175, 50102, 66625, 69290, 76375, 79430, 96350, 125255, 133250, 152750, 173225, 198575, 240875, 250510, 325663, 346450, 397150, 481750, 626275, 651326, 866125, 992875, 1252550, 1628315, 1732250, 1985750, 3131375, 3256630, 6262750, 8141575, 16283150, 40707875, 81415750]

約数ペア:

[(1, 81415750), (2, 40707875), (5, 16283150), (10, 8141575), (13, 6262750), (25, 3256630), (26, 3131375), (41, 1985750), (47, 1732250), (50, 1628315), (65, 1252550), (82, 992875), (94, 866125), (125, 651326), (130, 626275), (169, 481750), (205, 397150), (235, 346450), (250, 325663), (325, 250510), (338, 240875), (410, 198575), (470, 173225), (533, 152750), (611, 133250), (650, 125255), (845, 96350), (1025, 79430), (1066, 76375), (1175, 69290), (1222, 66625), (1625, 50102), (1690, 48175), (1927, 42250), (2050, 39715), (2350, 34645), (2665, 30550), (3055, 26650), (3250, 25051), (3854, 21125), (4225, 19270), (5125, 15886), (5330, 15275), (5875, 13858), (6110, 13325), (6929, 11750), (7943, 10250), (8450, 9635)]