28520140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6823}}^1$

素因数の和:6862

約数の個数: 48

約数和(自身を含む): 68785920

約数和(自身を除く): 40265780

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 6823, 13646, 27292, 34115, 68230, 75053, 129637, 136460, 150106, 259274, 300212, 375265, 518548, 648185, 750530, 1296370, 1426007, 1501060, 2592740, 2852014, 5704028, 7130035, 14260070, 28520140]

約数ペア:

[(1, 28520140), (2, 14260070), (4, 7130035), (5, 5704028), (10, 2852014), (11, 2592740), (19, 1501060), (20, 1426007), (22, 1296370), (38, 750530), (44, 648185), (55, 518548), (76, 375265), (95, 300212), (110, 259274), (190, 150106), (209, 136460), (220, 129637), (380, 75053), (418, 68230), (836, 34115), (1045, 27292), (2090, 13646), (4180, 6823)]