51660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1$

素因数の和:63

約数の個数: 72

約数和(自身を含む): 183456

約数和(自身を除く): 131796

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 41, 42, 45, 60, 63, 70, 82, 84, 90, 105, 123, 126, 140, 164, 180, 205, 210, 246, 252, 287, 315, 369, 410, 420, 492, 574, 615, 630, 738, 820, 861, 1148, 1230, 1260, 1435, 1476, 1722, 1845, 2460, 2583, 2870, 3444, 3690, 4305, 5166, 5740, 7380, 8610, 10332, 12915, 17220, 25830, 51660]

約数ペア:

[(1, 51660), (2, 25830), (3, 17220), (4, 12915), (5, 10332), (6, 8610), (7, 7380), (9, 5740), (10, 5166), (12, 4305), (14, 3690), (15, 3444), (18, 2870), (20, 2583), (21, 2460), (28, 1845), (30, 1722), (35, 1476), (36, 1435), (41, 1260), (42, 1230), (45, 1148), (60, 861), (63, 820), (70, 738), (82, 630), (84, 615), (90, 574), (105, 492), (123, 420), (126, 410), (140, 369), (164, 315), (180, 287), (205, 252), (210, 246)]