68571320

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 158695200

約数和(自身を除く): 90123880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 157, 179, 244, 305, 314, 358, 488, 610, 628, 716, 785, 895, 1220, 1256, 1432, 1570, 1790, 2440, 3140, 3580, 6280, 7160, 9577, 10919, 19154, 21838, 28103, 38308, 43676, 47885, 54595, 56206, 76616, 87352, 95770, 109190, 112412, 140515, 191540, 218380, 224824, 281030, 383080, 436760, 562060, 1124120, 1714283, 3428566, 6857132, 8571415, 13714264, 17142830, 34285660, 68571320]

約数ペア:

[(1, 68571320), (2, 34285660), (4, 17142830), (5, 13714264), (8, 8571415), (10, 6857132), (20, 3428566), (40, 1714283), (61, 1124120), (122, 562060), (157, 436760), (179, 383080), (244, 281030), (305, 224824), (314, 218380), (358, 191540), (488, 140515), (610, 112412), (628, 109190), (716, 95770), (785, 87352), (895, 76616), (1220, 56206), (1256, 54595), (1432, 47885), (1570, 43676), (1790, 38308), (2440, 28103), (3140, 21838), (3580, 19154), (6280, 10919), (7160, 9577)]