178945620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{426061}}^1$

素因数の和:426080

約数の個数: 48

約数和(自身を含む): 572627328

約数和(自身を除く): 393681708

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 426061, 852122, 1278183, 1704244, 2130305, 2556366, 2982427, 4260610, 5112732, 5964854, 6390915, 8521220, 8947281, 11929708, 12781830, 14912135, 17894562, 25563660, 29824270, 35789124, 44736405, 59648540, 89472810, 178945620]

約数ペア:

[(1, 178945620), (2, 89472810), (3, 59648540), (4, 44736405), (5, 35789124), (6, 29824270), (7, 25563660), (10, 17894562), (12, 14912135), (14, 12781830), (15, 11929708), (20, 8947281), (21, 8521220), (28, 6390915), (30, 5964854), (35, 5112732), (42, 4260610), (60, 2982427), (70, 2556366), (84, 2130305), (105, 1704244), (140, 1278183), (210, 852122), (420, 426061)]