31313750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:123

約数の個数: 80

約数和(自身を含む): 66128832

約数和(自身を除く): 34815082

約数列:

[1, 2, 5, 10, 13, 25, 26, 41, 47, 50, 65, 82, 94, 125, 130, 205, 235, 250, 325, 410, 470, 533, 611, 625, 650, 1025, 1066, 1175, 1222, 1250, 1625, 1927, 2050, 2350, 2665, 3055, 3250, 3854, 5125, 5330, 5875, 6110, 8125, 9635, 10250, 11750, 13325, 15275, 16250, 19270, 25051, 25625, 26650, 29375, 30550, 48175, 50102, 51250, 58750, 66625, 76375, 96350, 125255, 133250, 152750, 240875, 250510, 333125, 381875, 481750, 626275, 666250, 763750, 1204375, 1252550, 2408750, 3131375, 6262750, 15656875, 31313750]

約数ペア:

[(1, 31313750), (2, 15656875), (5, 6262750), (10, 3131375), (13, 2408750), (25, 1252550), (26, 1204375), (41, 763750), (47, 666250), (50, 626275), (65, 481750), (82, 381875), (94, 333125), (125, 250510), (130, 240875), (205, 152750), (235, 133250), (250, 125255), (325, 96350), (410, 76375), (470, 66625), (533, 58750), (611, 51250), (625, 50102), (650, 48175), (1025, 30550), (1066, 29375), (1175, 26650), (1222, 25625), (1250, 25051), (1625, 19270), (1927, 16250), (2050, 15275), (2350, 13325), (2665, 11750), (3055, 10250), (3250, 9635), (3854, 8125), (5125, 6110), (5330, 5875)]