40028940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31769}}^1$

素因数の和:31791

約数の個数: 72

約数和(自身を含む): 138771360

約数和(自身を除く): 98742420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 31769, 63538, 95307, 127076, 158845, 190614, 222383, 285921, 317690, 381228, 444766, 476535, 571842, 635380, 667149, 889532, 953070, 1111915, 1143684, 1334298, 1429605, 1906140, 2001447, 2223830, 2668596, 2859210, 3335745, 4002894, 4447660, 5718420, 6671490, 8005788, 10007235, 13342980, 20014470, 40028940]

約数ペア:

[(1, 40028940), (2, 20014470), (3, 13342980), (4, 10007235), (5, 8005788), (6, 6671490), (7, 5718420), (9, 4447660), (10, 4002894), (12, 3335745), (14, 2859210), (15, 2668596), (18, 2223830), (20, 2001447), (21, 1906140), (28, 1429605), (30, 1334298), (35, 1143684), (36, 1111915), (42, 953070), (45, 889532), (60, 667149), (63, 635380), (70, 571842), (84, 476535), (90, 444766), (105, 381228), (126, 317690), (140, 285921), (180, 222383), (210, 190614), (252, 158845), (315, 127076), (420, 95307), (630, 63538), (1260, 31769)]