51115520

素因数分解:

$2^9\times 5^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1$

素因数の和:551

約数の個数: 80

約数和(自身を含む): 125804448

約数和(自身を除く): 74688928

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, 512, 640, 656, 820, 974, 1280, 1312, 1640, 1948, 2435, 2560, 2624, 3280, 3896, 4870, 5248, 6560, 7792, 9740, 10496, 13120, 15584, 19480, 19967, 20992, 26240, 31168, 38960, 39934, 52480, 62336, 77920, 79868, 99835, 104960, 124672, 155840, 159736, 199670, 249344, 311680, 319472, 399340, 623360, 638944, 798680, 1246720, 1277888, 1597360, 2555776, 3194720, 5111552, 6389440, 10223104, 12778880, 25557760, 51115520]

約数ペア:

[(1, 51115520), (2, 25557760), (4, 12778880), (5, 10223104), (8, 6389440), (10, 5111552), (16, 3194720), (20, 2555776), (32, 1597360), (40, 1277888), (41, 1246720), (64, 798680), (80, 638944), (82, 623360), (128, 399340), (160, 319472), (164, 311680), (205, 249344), (256, 199670), (320, 159736), (328, 155840), (410, 124672), (487, 104960), (512, 99835), (640, 79868), (656, 77920), (820, 62336), (974, 52480), (1280, 39934), (1312, 38960), (1640, 31168), (1948, 26240), (2435, 20992), (2560, 19967), (2624, 19480), (3280, 15584), (3896, 13120), (4870, 10496), (5248, 9740), (6560, 7792)]