13220720

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2801}}^1$

素因数の和:2873

約数の個数: 40

約数和(自身を含む): 31270320

約数和(自身を除く): 18049600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 2801, 4720, 5602, 11204, 14005, 22408, 28010, 44816, 56020, 112040, 165259, 224080, 330518, 661036, 826295, 1322072, 1652590, 2644144, 3305180, 6610360, 13220720]

約数ペア:

[(1, 13220720), (2, 6610360), (4, 3305180), (5, 2644144), (8, 1652590), (10, 1322072), (16, 826295), (20, 661036), (40, 330518), (59, 224080), (80, 165259), (118, 112040), (236, 56020), (295, 44816), (472, 28010), (590, 22408), (944, 14005), (1180, 11204), (2360, 5602), (2801, 4720)]