31241860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1123}}^1$

素因数の和:1252

約数の個数: 48

約数和(自身を含む): 71378496

約数和(自身を除く): 40136636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 107, 130, 214, 260, 428, 535, 1070, 1123, 1391, 2140, 2246, 2782, 4492, 5564, 5615, 6955, 11230, 13910, 14599, 22460, 27820, 29198, 58396, 72995, 120161, 145990, 240322, 291980, 480644, 600805, 1201610, 1562093, 2403220, 3124186, 6248372, 7810465, 15620930, 31241860]

約数ペア:

[(1, 31241860), (2, 15620930), (4, 7810465), (5, 6248372), (10, 3124186), (13, 2403220), (20, 1562093), (26, 1201610), (52, 600805), (65, 480644), (107, 291980), (130, 240322), (214, 145990), (260, 120161), (428, 72995), (535, 58396), (1070, 29198), (1123, 27820), (1391, 22460), (2140, 14599), (2246, 13910), (2782, 11230), (4492, 6955), (5564, 5615)]