51780120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{61643}}^1$

素因数の和:61664

約数の個数: 64

約数和(自身を含む): 177534720

約数和(自身を除く): 125754600

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, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 61643, 123286, 184929, 246572, 308215, 369858, 431501, 493144, 616430, 739716, 863002, 924645, 1232860, 1294503, 1479432, 1726004, 1849290, 2157505, 2465720, 2589006, 3452008, 3698580, 4315010, 5178012, 6472515, 7397160, 8630020, 10356024, 12945030, 17260040, 25890060, 51780120]

約数ペア:

[(1, 51780120), (2, 25890060), (3, 17260040), (4, 12945030), (5, 10356024), (6, 8630020), (7, 7397160), (8, 6472515), (10, 5178012), (12, 4315010), (14, 3698580), (15, 3452008), (20, 2589006), (21, 2465720), (24, 2157505), (28, 1849290), (30, 1726004), (35, 1479432), (40, 1294503), (42, 1232860), (56, 924645), (60, 863002), (70, 739716), (84, 616430), (105, 493144), (120, 431501), (140, 369858), (168, 308215), (210, 246572), (280, 184929), (420, 123286), (840, 61643)]