25341880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 59719680

約数和(自身を除く): 34377800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 107, 124, 155, 191, 214, 248, 310, 382, 428, 535, 620, 764, 856, 955, 1070, 1240, 1528, 1910, 2140, 3317, 3820, 4280, 5921, 6634, 7640, 11842, 13268, 16585, 20437, 23684, 26536, 29605, 33170, 40874, 47368, 59210, 66340, 81748, 102185, 118420, 132680, 163496, 204370, 236840, 408740, 633547, 817480, 1267094, 2534188, 3167735, 5068376, 6335470, 12670940, 25341880]

約数ペア:

[(1, 25341880), (2, 12670940), (4, 6335470), (5, 5068376), (8, 3167735), (10, 2534188), (20, 1267094), (31, 817480), (40, 633547), (62, 408740), (107, 236840), (124, 204370), (155, 163496), (191, 132680), (214, 118420), (248, 102185), (310, 81748), (382, 66340), (428, 59210), (535, 47368), (620, 40874), (764, 33170), (856, 29605), (955, 26536), (1070, 23684), (1240, 20437), (1528, 16585), (1910, 13268), (2140, 11842), (3317, 7640), (3820, 6634), (4280, 5921)]