17947220

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 39325440

約数和(自身を除く): 21378220

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 79, 148, 158, 185, 307, 316, 370, 395, 614, 740, 790, 1228, 1535, 1580, 2923, 3070, 5846, 6140, 11359, 11692, 14615, 22718, 24253, 29230, 45436, 48506, 56795, 58460, 97012, 113590, 121265, 227180, 242530, 485060, 897361, 1794722, 3589444, 4486805, 8973610, 17947220]

約数ペア:

[(1, 17947220), (2, 8973610), (4, 4486805), (5, 3589444), (10, 1794722), (20, 897361), (37, 485060), (74, 242530), (79, 227180), (148, 121265), (158, 113590), (185, 97012), (307, 58460), (316, 56795), (370, 48506), (395, 45436), (614, 29230), (740, 24253), (790, 22718), (1228, 14615), (1535, 11692), (1580, 11359), (2923, 6140), (3070, 5846)]