18893940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24223}}^1$

素因数の和:24248

約数の個数: 48

約数和(自身を含む): 56974848

約数和(自身を除く): 38080908

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 24223, 48446, 72669, 96892, 121115, 145338, 242230, 290676, 314899, 363345, 484460, 629798, 726690, 944697, 1259596, 1453380, 1574495, 1889394, 3148990, 3778788, 4723485, 6297980, 9446970, 18893940]

約数ペア:

[(1, 18893940), (2, 9446970), (3, 6297980), (4, 4723485), (5, 3778788), (6, 3148990), (10, 1889394), (12, 1574495), (13, 1453380), (15, 1259596), (20, 944697), (26, 726690), (30, 629798), (39, 484460), (52, 363345), (60, 314899), (65, 290676), (78, 242230), (130, 145338), (156, 121115), (195, 96892), (260, 72669), (390, 48446), (780, 24223)]