209980940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47507}}^1$

素因数の和:47546

約数の個数: 48

約数和(自身を含む): 502824672

約数和(自身を除く): 292843732

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 47507, 95014, 190028, 237535, 475070, 617591, 807619, 950140, 1235182, 1615238, 2470364, 3087955, 3230476, 4038095, 6175910, 8076190, 10499047, 12351820, 16152380, 20998094, 41996188, 52495235, 104990470, 209980940]

約数ペア:

[(1, 209980940), (2, 104990470), (4, 52495235), (5, 41996188), (10, 20998094), (13, 16152380), (17, 12351820), (20, 10499047), (26, 8076190), (34, 6175910), (52, 4038095), (65, 3230476), (68, 3087955), (85, 2470364), (130, 1615238), (170, 1235182), (221, 950140), (260, 807619), (340, 617591), (442, 475070), (884, 237535), (1105, 190028), (2210, 95014), (4420, 47507)]