25664560

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{167}}^1$

素因数の和:310

約数の個数: 80

約数和(自身を含む): 64120896

約数和(自身を除く): 38456336

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 113, 136, 167, 170, 226, 272, 334, 340, 452, 565, 668, 680, 835, 904, 1130, 1336, 1360, 1670, 1808, 1921, 2260, 2672, 2839, 3340, 3842, 4520, 5678, 6680, 7684, 9040, 9605, 11356, 13360, 14195, 15368, 18871, 19210, 22712, 28390, 30736, 37742, 38420, 45424, 56780, 75484, 76840, 94355, 113560, 150968, 153680, 188710, 227120, 301936, 320807, 377420, 641614, 754840, 1283228, 1509680, 1604035, 2566456, 3208070, 5132912, 6416140, 12832280, 25664560]

約数ペア:

[(1, 25664560), (2, 12832280), (4, 6416140), (5, 5132912), (8, 3208070), (10, 2566456), (16, 1604035), (17, 1509680), (20, 1283228), (34, 754840), (40, 641614), (68, 377420), (80, 320807), (85, 301936), (113, 227120), (136, 188710), (167, 153680), (170, 150968), (226, 113560), (272, 94355), (334, 76840), (340, 75484), (452, 56780), (565, 45424), (668, 38420), (680, 37742), (835, 30736), (904, 28390), (1130, 22712), (1336, 19210), (1360, 18871), (1670, 15368), (1808, 14195), (1921, 13360), (2260, 11356), (2672, 9605), (2839, 9040), (3340, 7684), (3842, 6680), (4520, 5678)]