1247640890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{31121}}^1$

素因数の和:31358

約数の個数: 32

約数和(自身を含む): 2375231040

約数和(自身を除く): 1127590150

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 211, 422, 1055, 2110, 4009, 8018, 20045, 31121, 40090, 62242, 155605, 311210, 591299, 1182598, 2956495, 5912990, 6566531, 13133062, 32832655, 65665310, 124764089, 249528178, 623820445, 1247640890]

約数ペア:

[(1, 1247640890), (2, 623820445), (5, 249528178), (10, 124764089), (19, 65665310), (38, 32832655), (95, 13133062), (190, 6566531), (211, 5912990), (422, 2956495), (1055, 1182598), (2110, 591299), (4009, 311210), (8018, 155605), (20045, 62242), (31121, 40090)]