31303580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20327}}^1$

素因数の和:20354

約数の個数: 48

約数和(自身を含む): 81962496

約数和(自身を除く): 50658916

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 20327, 40654, 81308, 101635, 142289, 203270, 223597, 284578, 406540, 447194, 569156, 711445, 894388, 1117985, 1422890, 1565179, 2235970, 2845780, 3130358, 4471940, 6260716, 7825895, 15651790, 31303580]

約数ペア:

[(1, 31303580), (2, 15651790), (4, 7825895), (5, 6260716), (7, 4471940), (10, 3130358), (11, 2845780), (14, 2235970), (20, 1565179), (22, 1422890), (28, 1117985), (35, 894388), (44, 711445), (55, 569156), (70, 447194), (77, 406540), (110, 284578), (140, 223597), (154, 203270), (220, 142289), (308, 101635), (385, 81308), (770, 40654), (1540, 20327)]