20342774840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{652849}}^1$

素因数の和:652920

約数の個数: 64

約数和(自身を含む): 49355460000

約数和(自身を除く): 29012685160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 328, 380, 410, 760, 779, 820, 1558, 1640, 3116, 3895, 6232, 7790, 15580, 31160, 652849, 1305698, 2611396, 3264245, 5222792, 6528490, 12404131, 13056980, 24808262, 26113960, 26766809, 49616524, 53533618, 62020655, 99233048, 107067236, 124041310, 133834045, 214134472, 248082620, 267668090, 496165240, 508569371, 535336180, 1017138742, 1070672360, 2034277484, 2542846855, 4068554968, 5085693710, 10171387420, 20342774840]

約数ペア:

[(1, 20342774840), (2, 10171387420), (4, 5085693710), (5, 4068554968), (8, 2542846855), (10, 2034277484), (19, 1070672360), (20, 1017138742), (38, 535336180), (40, 508569371), (41, 496165240), (76, 267668090), (82, 248082620), (95, 214134472), (152, 133834045), (164, 124041310), (190, 107067236), (205, 99233048), (328, 62020655), (380, 53533618), (410, 49616524), (760, 26766809), (779, 26113960), (820, 24808262), (1558, 13056980), (1640, 12404131), (3116, 6528490), (3895, 5222792), (6232, 3264245), (7790, 2611396), (15580, 1305698), (31160, 652849)]