31458040

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{577}}^1$

素因数の和:664

約数の個数: 64

約数和(自身を含む): 74908800

約数和(自身を除く): 43450760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 47, 58, 94, 116, 145, 188, 232, 235, 290, 376, 470, 577, 580, 940, 1154, 1160, 1363, 1880, 2308, 2726, 2885, 4616, 5452, 5770, 6815, 10904, 11540, 13630, 16733, 23080, 27119, 27260, 33466, 54238, 54520, 66932, 83665, 108476, 133864, 135595, 167330, 216952, 271190, 334660, 542380, 669320, 786451, 1084760, 1572902, 3145804, 3932255, 6291608, 7864510, 15729020, 31458040]

約数ペア:

[(1, 31458040), (2, 15729020), (4, 7864510), (5, 6291608), (8, 3932255), (10, 3145804), (20, 1572902), (29, 1084760), (40, 786451), (47, 669320), (58, 542380), (94, 334660), (116, 271190), (145, 216952), (188, 167330), (232, 135595), (235, 133864), (290, 108476), (376, 83665), (470, 66932), (577, 54520), (580, 54238), (940, 33466), (1154, 27260), (1160, 27119), (1363, 23080), (1880, 16733), (2308, 13630), (2726, 11540), (2885, 10904), (4616, 6815), (5452, 5770)]