8540420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1151}}^1$

素因数の和:1220

約数の個数: 48

約数和(自身を含む): 20901888

約数和(自身を除く): 12361468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1151, 1484, 1855, 2302, 3710, 4604, 5755, 7420, 8057, 11510, 16114, 23020, 32228, 40285, 61003, 80570, 122006, 161140, 244012, 305015, 427021, 610030, 854042, 1220060, 1708084, 2135105, 4270210, 8540420]

約数ペア:

[(1, 8540420), (2, 4270210), (4, 2135105), (5, 1708084), (7, 1220060), (10, 854042), (14, 610030), (20, 427021), (28, 305015), (35, 244012), (53, 161140), (70, 122006), (106, 80570), (140, 61003), (212, 40285), (265, 32228), (371, 23020), (530, 16114), (742, 11510), (1060, 8057), (1151, 7420), (1484, 5755), (1855, 4604), (2302, 3710)]