31363000

素因数分解:

$2^3\times 5^3\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:497

約数の個数: 64

約数和(自身を含む): 74505600

約数和(自身を除く): 43142600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 125, 158, 200, 250, 316, 395, 397, 500, 632, 790, 794, 1000, 1580, 1588, 1975, 1985, 3160, 3176, 3950, 3970, 7900, 7940, 9875, 9925, 15800, 15880, 19750, 19850, 31363, 39500, 39700, 49625, 62726, 79000, 79400, 99250, 125452, 156815, 198500, 250904, 313630, 397000, 627260, 784075, 1254520, 1568150, 3136300, 3920375, 6272600, 7840750, 15681500, 31363000]

約数ペア:

[(1, 31363000), (2, 15681500), (4, 7840750), (5, 6272600), (8, 3920375), (10, 3136300), (20, 1568150), (25, 1254520), (40, 784075), (50, 627260), (79, 397000), (100, 313630), (125, 250904), (158, 198500), (200, 156815), (250, 125452), (316, 99250), (395, 79400), (397, 79000), (500, 62726), (632, 49625), (790, 39700), (794, 39500), (1000, 31363), (1580, 19850), (1588, 19750), (1975, 15880), (1985, 15800), (3160, 9925), (3176, 9875), (3950, 7940), (3970, 7900)]