19023940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3851}}^1$

素因数の和:3892

約数の個数: 48

約数和(自身を含む): 45299520

約数和(自身を除く): 26275580

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 3851, 4940, 7702, 15404, 19255, 38510, 50063, 73169, 77020, 100126, 146338, 200252, 250315, 292676, 365845, 500630, 731690, 951197, 1001260, 1463380, 1902394, 3804788, 4755985, 9511970, 19023940]

約数ペア:

[(1, 19023940), (2, 9511970), (4, 4755985), (5, 3804788), (10, 1902394), (13, 1463380), (19, 1001260), (20, 951197), (26, 731690), (38, 500630), (52, 365845), (65, 292676), (76, 250315), (95, 200252), (130, 146338), (190, 100126), (247, 77020), (260, 73169), (380, 50063), (494, 38510), (988, 19255), (1235, 15404), (2470, 7702), (3851, 4940)]