31031200

素因数分解:

$2^5\times 5^2\times {\mathrm{79}}^1\times {\mathrm{491}}^1$

素因数の和:590

約数の個数: 72

約数和(自身を含む): 76870080

約数和(自身を除く): 45838880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 79, 80, 100, 158, 160, 200, 316, 395, 400, 491, 632, 790, 800, 982, 1264, 1580, 1964, 1975, 2455, 2528, 3160, 3928, 3950, 4910, 6320, 7856, 7900, 9820, 12275, 12640, 15712, 15800, 19640, 24550, 31600, 38789, 39280, 49100, 63200, 77578, 78560, 98200, 155156, 193945, 196400, 310312, 387890, 392800, 620624, 775780, 969725, 1241248, 1551560, 1939450, 3103120, 3878900, 6206240, 7757800, 15515600, 31031200]

約数ペア:

[(1, 31031200), (2, 15515600), (4, 7757800), (5, 6206240), (8, 3878900), (10, 3103120), (16, 1939450), (20, 1551560), (25, 1241248), (32, 969725), (40, 775780), (50, 620624), (79, 392800), (80, 387890), (100, 310312), (158, 196400), (160, 193945), (200, 155156), (316, 98200), (395, 78560), (400, 77578), (491, 63200), (632, 49100), (790, 39280), (800, 38789), (982, 31600), (1264, 24550), (1580, 19640), (1964, 15800), (1975, 15712), (2455, 12640), (2528, 12275), (3160, 9820), (3928, 7900), (3950, 7856), (4910, 6320)]