51240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1$

素因数の和:82

約数の個数: 64

約数和(自身を含む): 178560

約数和(自身を除く): 127320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 61, 70, 84, 105, 120, 122, 140, 168, 183, 210, 244, 280, 305, 366, 420, 427, 488, 610, 732, 840, 854, 915, 1220, 1281, 1464, 1708, 1830, 2135, 2440, 2562, 3416, 3660, 4270, 5124, 6405, 7320, 8540, 10248, 12810, 17080, 25620, 51240]

約数ペア:

[(1, 51240), (2, 25620), (3, 17080), (4, 12810), (5, 10248), (6, 8540), (7, 7320), (8, 6405), (10, 5124), (12, 4270), (14, 3660), (15, 3416), (20, 2562), (21, 2440), (24, 2135), (28, 1830), (30, 1708), (35, 1464), (40, 1281), (42, 1220), (56, 915), (60, 854), (61, 840), (70, 732), (84, 610), (105, 488), (120, 427), (122, 420), (140, 366), (168, 305), (183, 280), (210, 244)]