387717460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{3559}}^1$

素因数の和:4000

約数の個数: 48

約数和(自身を含む): 879177600

約数和(自身を除く): 491460140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 419, 838, 1676, 2095, 3559, 4190, 5447, 7118, 8380, 10894, 14236, 17795, 21788, 27235, 35590, 46267, 54470, 71180, 92534, 108940, 185068, 231335, 462670, 925340, 1491221, 2982442, 5964884, 7456105, 14912210, 19385873, 29824420, 38771746, 77543492, 96929365, 193858730, 387717460]

約数ペア:

[(1, 387717460), (2, 193858730), (4, 96929365), (5, 77543492), (10, 38771746), (13, 29824420), (20, 19385873), (26, 14912210), (52, 7456105), (65, 5964884), (130, 2982442), (260, 1491221), (419, 925340), (838, 462670), (1676, 231335), (2095, 185068), (3559, 108940), (4190, 92534), (5447, 71180), (7118, 54470), (8380, 46267), (10894, 35590), (14236, 27235), (17795, 21788)]