400812160

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{12781}}^1$

素因数の和:12814

約数の個数: 96

約数和(自身を含む): 1114718220

約数和(自身を除く): 713906060

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 640, 784, 896, 980, 1120, 1568, 1960, 2240, 3136, 3920, 4480, 6272, 7840, 12781, 15680, 25562, 31360, 51124, 63905, 89467, 102248, 127810, 178934, 204496, 255620, 357868, 408992, 447335, 511240, 626269, 715736, 817984, 894670, 1022480, 1252538, 1431472, 1635968, 1789340, 2044960, 2505076, 2862944, 3131345, 3578680, 4089920, 5010152, 5725888, 6262690, 7157360, 8179840, 10020304, 11451776, 12525380, 14314720, 20040608, 25050760, 28629440, 40081216, 50101520, 57258880, 80162432, 100203040, 200406080, 400812160]

約数ペア:

[(1, 400812160), (2, 200406080), (4, 100203040), (5, 80162432), (7, 57258880), (8, 50101520), (10, 40081216), (14, 28629440), (16, 25050760), (20, 20040608), (28, 14314720), (32, 12525380), (35, 11451776), (40, 10020304), (49, 8179840), (56, 7157360), (64, 6262690), (70, 5725888), (80, 5010152), (98, 4089920), (112, 3578680), (128, 3131345), (140, 2862944), (160, 2505076), (196, 2044960), (224, 1789340), (245, 1635968), (280, 1431472), (320, 1252538), (392, 1022480), (448, 894670), (490, 817984), (560, 715736), (640, 626269), (784, 511240), (896, 447335), (980, 408992), (1120, 357868), (1568, 255620), (1960, 204496), (2240, 178934), (3136, 127810), (3920, 102248), (4480, 89467), (6272, 63905), (7840, 51124), (12781, 31360), (15680, 25562)]