19760490

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{449}}^1$

素因数の和:628

約数の個数: 64

約数和(自身を含む): 53136000

約数和(自身を除く): 33375510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 163, 270, 326, 449, 489, 815, 898, 978, 1347, 1467, 1630, 2245, 2445, 2694, 2934, 4041, 4401, 4490, 4890, 6735, 7335, 8082, 8802, 12123, 13470, 14670, 20205, 22005, 24246, 40410, 44010, 60615, 73187, 121230, 146374, 219561, 365935, 439122, 658683, 731870, 1097805, 1317366, 1976049, 2195610, 3293415, 3952098, 6586830, 9880245, 19760490]

約数ペア:

[(1, 19760490), (2, 9880245), (3, 6586830), (5, 3952098), (6, 3293415), (9, 2195610), (10, 1976049), (15, 1317366), (18, 1097805), (27, 731870), (30, 658683), (45, 439122), (54, 365935), (90, 219561), (135, 146374), (163, 121230), (270, 73187), (326, 60615), (449, 44010), (489, 40410), (815, 24246), (898, 22005), (978, 20205), (1347, 14670), (1467, 13470), (1630, 12123), (2245, 8802), (2445, 8082), (2694, 7335), (2934, 6735), (4041, 4890), (4401, 4490)]