61531900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{863}}^1$

素因数の和:931

約数の個数: 72

約数和(自身を含む): 143990784

約数和(自身を除く): 82458884

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 31, 46, 50, 62, 92, 100, 115, 124, 155, 230, 310, 460, 575, 620, 713, 775, 863, 1150, 1426, 1550, 1726, 2300, 2852, 3100, 3452, 3565, 4315, 7130, 8630, 14260, 17260, 17825, 19849, 21575, 26753, 35650, 39698, 43150, 53506, 71300, 79396, 86300, 99245, 107012, 133765, 198490, 267530, 396980, 496225, 535060, 615319, 668825, 992450, 1230638, 1337650, 1984900, 2461276, 2675300, 3076595, 6153190, 12306380, 15382975, 30765950, 61531900]

約数ペア:

[(1, 61531900), (2, 30765950), (4, 15382975), (5, 12306380), (10, 6153190), (20, 3076595), (23, 2675300), (25, 2461276), (31, 1984900), (46, 1337650), (50, 1230638), (62, 992450), (92, 668825), (100, 615319), (115, 535060), (124, 496225), (155, 396980), (230, 267530), (310, 198490), (460, 133765), (575, 107012), (620, 99245), (713, 86300), (775, 79396), (863, 71300), (1150, 53506), (1426, 43150), (1550, 39698), (1726, 35650), (2300, 26753), (2852, 21575), (3100, 19849), (3452, 17825), (3565, 17260), (4315, 14260), (7130, 8630)]