81802030

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{18719}}^1$

素因数の和:18768

約数の個数: 32

約数和(自身を含む): 161740800

約数和(自身を除く): 79938770

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 190, 230, 437, 874, 2185, 4370, 18719, 37438, 93595, 187190, 355661, 430537, 711322, 861074, 1778305, 2152685, 3556610, 4305370, 8180203, 16360406, 40901015, 81802030]

約数ペア:

[(1, 81802030), (2, 40901015), (5, 16360406), (10, 8180203), (19, 4305370), (23, 3556610), (38, 2152685), (46, 1778305), (95, 861074), (115, 711322), (190, 430537), (230, 355661), (437, 187190), (874, 93595), (2185, 37438), (4370, 18719)]