19610890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2473}}^1$

素因数の和:2554

約数の個数: 32

約数和(自身を含む): 38653776

約数和(自身を除く): 19042886

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 610, 793, 1586, 2473, 3965, 4946, 7930, 12365, 24730, 32149, 64298, 150853, 160745, 301706, 321490, 754265, 1508530, 1961089, 3922178, 9805445, 19610890]

約数ペア:

[(1, 19610890), (2, 9805445), (5, 3922178), (10, 1961089), (13, 1508530), (26, 754265), (61, 321490), (65, 301706), (122, 160745), (130, 150853), (305, 64298), (610, 32149), (793, 24730), (1586, 12365), (2473, 7930), (3965, 4946)]