25557760

素因数分解:

$2^8\times 5^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1$

素因数の和:549

約数の個数: 72

約数和(自身を含む): 62840736

約数和(自身を除く): 37282976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 487, 640, 656, 820, 974, 1280, 1312, 1640, 1948, 2435, 2624, 3280, 3896, 4870, 5248, 6560, 7792, 9740, 10496, 13120, 15584, 19480, 19967, 26240, 31168, 38960, 39934, 52480, 62336, 77920, 79868, 99835, 124672, 155840, 159736, 199670, 311680, 319472, 399340, 623360, 638944, 798680, 1277888, 1597360, 2555776, 3194720, 5111552, 6389440, 12778880, 25557760]

約数ペア:

[(1, 25557760), (2, 12778880), (4, 6389440), (5, 5111552), (8, 3194720), (10, 2555776), (16, 1597360), (20, 1277888), (32, 798680), (40, 638944), (41, 623360), (64, 399340), (80, 319472), (82, 311680), (128, 199670), (160, 159736), (164, 155840), (205, 124672), (256, 99835), (320, 79868), (328, 77920), (410, 62336), (487, 52480), (640, 39934), (656, 38960), (820, 31168), (974, 26240), (1280, 19967), (1312, 19480), (1640, 15584), (1948, 13120), (2435, 10496), (2624, 9740), (3280, 7792), (3896, 6560), (4870, 5248)]