19388180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1753}}^1$

素因数の和:1848

約数の個数: 48

約数和(自身を含む): 47147520

約数和(自身を除く): 27759340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 1753, 2212, 2765, 3506, 5530, 7012, 8765, 11060, 12271, 17530, 24542, 35060, 49084, 61355, 122710, 138487, 245420, 276974, 553948, 692435, 969409, 1384870, 1938818, 2769740, 3877636, 4847045, 9694090, 19388180]

約数ペア:

[(1, 19388180), (2, 9694090), (4, 4847045), (5, 3877636), (7, 2769740), (10, 1938818), (14, 1384870), (20, 969409), (28, 692435), (35, 553948), (70, 276974), (79, 245420), (140, 138487), (158, 122710), (316, 61355), (395, 49084), (553, 35060), (790, 24542), (1106, 17530), (1580, 12271), (1753, 11060), (2212, 8765), (2765, 7012), (3506, 5530)]