19279650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9887}}^1$

素因数の和:9915

約数の個数: 48

約数和(自身を含む): 51496704

約数和(自身を除く): 32217054

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 9887, 19774, 29661, 49435, 59322, 98870, 128531, 148305, 247175, 257062, 296610, 385593, 494350, 642655, 741525, 771186, 1285310, 1483050, 1927965, 3213275, 3855930, 6426550, 9639825, 19279650]

約数ペア:

[(1, 19279650), (2, 9639825), (3, 6426550), (5, 3855930), (6, 3213275), (10, 1927965), (13, 1483050), (15, 1285310), (25, 771186), (26, 741525), (30, 642655), (39, 494350), (50, 385593), (65, 296610), (75, 257062), (78, 247175), (130, 148305), (150, 128531), (195, 98870), (325, 59322), (390, 49435), (650, 29661), (975, 19774), (1950, 9887)]