30128900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{9719}}^1$

素因数の和:9764

約数の個数: 36

約数和(自身を含む): 67495680

約数和(自身を除く): 37366780

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 9719, 19438, 38876, 48595, 97190, 194380, 242975, 301289, 485950, 602578, 971900, 1205156, 1506445, 3012890, 6025780, 7532225, 15064450, 30128900]

約数ペア:

[(1, 30128900), (2, 15064450), (4, 7532225), (5, 6025780), (10, 3012890), (20, 1506445), (25, 1205156), (31, 971900), (50, 602578), (62, 485950), (100, 301289), (124, 242975), (155, 194380), (310, 97190), (620, 48595), (775, 38876), (1550, 19438), (3100, 9719)]