1818805220

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{761}}^1\times {\mathrm{1637}}^1$

素因数の和:2480

約数の個数: 48

約数和(自身を含む): 3879268848

約数和(自身を除く): 2060463628

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 761, 1460, 1522, 1637, 3044, 3274, 3805, 6548, 7610, 8185, 15220, 16370, 32740, 55553, 111106, 119501, 222212, 239002, 277765, 478004, 555530, 597505, 1111060, 1195010, 1245757, 2390020, 2491514, 4983028, 6228785, 12457570, 24915140, 90940261, 181880522, 363761044, 454701305, 909402610, 1818805220]

約数ペア:

[(1, 1818805220), (2, 909402610), (4, 454701305), (5, 363761044), (10, 181880522), (20, 90940261), (73, 24915140), (146, 12457570), (292, 6228785), (365, 4983028), (730, 2491514), (761, 2390020), (1460, 1245757), (1522, 1195010), (1637, 1111060), (3044, 597505), (3274, 555530), (3805, 478004), (6548, 277765), (7610, 239002), (8185, 222212), (15220, 119501), (16370, 111106), (32740, 55553)]