19830525

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^2$

素因数の和:123

約数の個数: 72

約数和(自身を含む): 39434976

約数和(自身を除く): 19604451

約数列:

[1, 3, 5, 11, 13, 15, 25, 33, 39, 43, 55, 65, 75, 129, 143, 165, 195, 215, 275, 325, 429, 473, 559, 645, 715, 825, 975, 1075, 1419, 1677, 1849, 2145, 2365, 2795, 3225, 3575, 5547, 6149, 7095, 8385, 9245, 10725, 11825, 13975, 18447, 20339, 24037, 27735, 30745, 35475, 41925, 46225, 61017, 72111, 92235, 101695, 120185, 138675, 153725, 264407, 305085, 360555, 461175, 508475, 600925, 793221, 1322035, 1525425, 1802775, 3966105, 6610175, 19830525]

約数ペア:

[(1, 19830525), (3, 6610175), (5, 3966105), (11, 1802775), (13, 1525425), (15, 1322035), (25, 793221), (33, 600925), (39, 508475), (43, 461175), (55, 360555), (65, 305085), (75, 264407), (129, 153725), (143, 138675), (165, 120185), (195, 101695), (215, 92235), (275, 72111), (325, 61017), (429, 46225), (473, 41925), (559, 35475), (645, 30745), (715, 27735), (825, 24037), (975, 20339), (1075, 18447), (1419, 13975), (1677, 11825), (1849, 10725), (2145, 9245), (2365, 8385), (2795, 7095), (3225, 6149), (3575, 5547)]