16505840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{269}}^1$

素因数の和:354

約数の個数: 80

約数和(自身を含む): 42184800

約数和(自身を除く): 25678960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 59, 65, 80, 104, 118, 130, 208, 236, 260, 269, 295, 472, 520, 538, 590, 767, 944, 1040, 1076, 1180, 1345, 1534, 2152, 2360, 2690, 3068, 3497, 3835, 4304, 4720, 5380, 6136, 6994, 7670, 10760, 12272, 13988, 15340, 15871, 17485, 21520, 27976, 30680, 31742, 34970, 55952, 61360, 63484, 69940, 79355, 126968, 139880, 158710, 206323, 253936, 279760, 317420, 412646, 634840, 825292, 1031615, 1269680, 1650584, 2063230, 3301168, 4126460, 8252920, 16505840]

約数ペア:

[(1, 16505840), (2, 8252920), (4, 4126460), (5, 3301168), (8, 2063230), (10, 1650584), (13, 1269680), (16, 1031615), (20, 825292), (26, 634840), (40, 412646), (52, 317420), (59, 279760), (65, 253936), (80, 206323), (104, 158710), (118, 139880), (130, 126968), (208, 79355), (236, 69940), (260, 63484), (269, 61360), (295, 55952), (472, 34970), (520, 31742), (538, 30680), (590, 27976), (767, 21520), (944, 17485), (1040, 15871), (1076, 15340), (1180, 13988), (1345, 12272), (1534, 10760), (2152, 7670), (2360, 6994), (2690, 6136), (3068, 5380), (3497, 4720), (3835, 4304)]