19393740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{661}}^1$

素因数の和:839

約数の個数: 72

約数和(自身を含む): 59278128

約数和(自身を除く): 39884388

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 163, 180, 326, 489, 652, 661, 815, 978, 1322, 1467, 1630, 1956, 1983, 2445, 2644, 2934, 3260, 3305, 3966, 4890, 5868, 5949, 6610, 7335, 7932, 9780, 9915, 11898, 13220, 14670, 19830, 23796, 29340, 29745, 39660, 59490, 107743, 118980, 215486, 323229, 430972, 538715, 646458, 969687, 1077430, 1292916, 1616145, 1939374, 2154860, 3232290, 3878748, 4848435, 6464580, 9696870, 19393740]

約数ペア:

[(1, 19393740), (2, 9696870), (3, 6464580), (4, 4848435), (5, 3878748), (6, 3232290), (9, 2154860), (10, 1939374), (12, 1616145), (15, 1292916), (18, 1077430), (20, 969687), (30, 646458), (36, 538715), (45, 430972), (60, 323229), (90, 215486), (163, 118980), (180, 107743), (326, 59490), (489, 39660), (652, 29745), (661, 29340), (815, 23796), (978, 19830), (1322, 14670), (1467, 13220), (1630, 11898), (1956, 9915), (1983, 9780), (2445, 7932), (2644, 7335), (2934, 6610), (3260, 5949), (3305, 5868), (3966, 4890)]