31388220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1693}}^1$

素因数の和:1811

約数の個数: 72

約数和(自身を含む): 96192096

約数和(自身を除く): 64803876

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 103, 180, 206, 309, 412, 515, 618, 927, 1030, 1236, 1545, 1693, 1854, 2060, 3090, 3386, 3708, 4635, 5079, 6180, 6772, 8465, 9270, 10158, 15237, 16930, 18540, 20316, 25395, 30474, 33860, 50790, 60948, 76185, 101580, 152370, 174379, 304740, 348758, 523137, 697516, 871895, 1046274, 1569411, 1743790, 2092548, 2615685, 3138822, 3487580, 5231370, 6277644, 7847055, 10462740, 15694110, 31388220]

約数ペア:

[(1, 31388220), (2, 15694110), (3, 10462740), (4, 7847055), (5, 6277644), (6, 5231370), (9, 3487580), (10, 3138822), (12, 2615685), (15, 2092548), (18, 1743790), (20, 1569411), (30, 1046274), (36, 871895), (45, 697516), (60, 523137), (90, 348758), (103, 304740), (180, 174379), (206, 152370), (309, 101580), (412, 76185), (515, 60948), (618, 50790), (927, 33860), (1030, 30474), (1236, 25395), (1545, 20316), (1693, 18540), (1854, 16930), (2060, 15237), (3090, 10158), (3386, 9270), (3708, 8465), (4635, 6772), (5079, 6180)]