3900890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{419}}^1$

素因数の和:459

約数の個数: 48

約数和(自身を含む): 8618400

約数和(自身を除く): 4717510

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 95, 98, 133, 190, 245, 266, 419, 490, 665, 838, 931, 1330, 1862, 2095, 2933, 4190, 4655, 5866, 7961, 9310, 14665, 15922, 20531, 29330, 39805, 41062, 55727, 79610, 102655, 111454, 205310, 278635, 390089, 557270, 780178, 1950445, 3900890]

約数ペア:

[(1, 3900890), (2, 1950445), (5, 780178), (7, 557270), (10, 390089), (14, 278635), (19, 205310), (35, 111454), (38, 102655), (49, 79610), (70, 55727), (95, 41062), (98, 39805), (133, 29330), (190, 20531), (245, 15922), (266, 14665), (419, 9310), (490, 7961), (665, 5866), (838, 4655), (931, 4190), (1330, 2933), (1862, 2095)]