18934760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2801}}^1$

素因数の和:2838

約数の個数: 48

約数和(自身を含む): 46148940

約数和(自身を除く): 27214180

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 2801, 3380, 5602, 6760, 11204, 14005, 22408, 28010, 36413, 56020, 72826, 112040, 145652, 182065, 291304, 364130, 473369, 728260, 946738, 1456520, 1893476, 2366845, 3786952, 4733690, 9467380, 18934760]

約数ペア:

[(1, 18934760), (2, 9467380), (4, 4733690), (5, 3786952), (8, 2366845), (10, 1893476), (13, 1456520), (20, 946738), (26, 728260), (40, 473369), (52, 364130), (65, 291304), (104, 182065), (130, 145652), (169, 112040), (260, 72826), (338, 56020), (520, 36413), (676, 28010), (845, 22408), (1352, 14005), (1690, 11204), (2801, 6760), (3380, 5602)]