30855160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{419}}^1$

素因数の和:700

約数の個数: 64

約数和(自身を含む): 79833600

約数和(自身を除く): 48978440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 263, 280, 419, 526, 838, 1052, 1315, 1676, 1841, 2095, 2104, 2630, 2933, 3352, 3682, 4190, 5260, 5866, 7364, 8380, 9205, 10520, 11732, 14665, 14728, 16760, 18410, 23464, 29330, 36820, 58660, 73640, 110197, 117320, 220394, 440788, 550985, 771379, 881576, 1101970, 1542758, 2203940, 3085516, 3856895, 4407880, 6171032, 7713790, 15427580, 30855160]

約数ペア:

[(1, 30855160), (2, 15427580), (4, 7713790), (5, 6171032), (7, 4407880), (8, 3856895), (10, 3085516), (14, 2203940), (20, 1542758), (28, 1101970), (35, 881576), (40, 771379), (56, 550985), (70, 440788), (140, 220394), (263, 117320), (280, 110197), (419, 73640), (526, 58660), (838, 36820), (1052, 29330), (1315, 23464), (1676, 18410), (1841, 16760), (2095, 14728), (2104, 14665), (2630, 11732), (2933, 10520), (3352, 9205), (3682, 8380), (4190, 7364), (5260, 5866)]