9780822520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{442171}}^1$

素因数の和:442268

約数の個数: 64

約数和(自身を含む): 25469107200

約数和(自身を除く): 15688284680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 553, 632, 790, 1106, 1580, 2212, 2765, 3160, 4424, 5530, 11060, 22120, 442171, 884342, 1768684, 2210855, 3095197, 3537368, 4421710, 6190394, 8843420, 12380788, 15475985, 17686840, 24761576, 30951970, 34931509, 61903940, 69863018, 123807880, 139726036, 174657545, 244520563, 279452072, 349315090, 489041126, 698630180, 978082252, 1222602815, 1397260360, 1956164504, 2445205630, 4890411260, 9780822520]

約数ペア:

[(1, 9780822520), (2, 4890411260), (4, 2445205630), (5, 1956164504), (7, 1397260360), (8, 1222602815), (10, 978082252), (14, 698630180), (20, 489041126), (28, 349315090), (35, 279452072), (40, 244520563), (56, 174657545), (70, 139726036), (79, 123807880), (140, 69863018), (158, 61903940), (280, 34931509), (316, 30951970), (395, 24761576), (553, 17686840), (632, 15475985), (790, 12380788), (1106, 8843420), (1580, 6190394), (2212, 4421710), (2765, 3537368), (3160, 3095197), (4424, 2210855), (5530, 1768684), (11060, 884342), (22120, 442171)]