251282780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{15083}}^1$

素因数の和:15123

約数の個数: 72

約数和(自身を含む): 649999728

約数和(自身を除く): 398716948

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 595, 833, 980, 1190, 1666, 2380, 3332, 4165, 8330, 15083, 16660, 30166, 60332, 75415, 105581, 150830, 211162, 256411, 301660, 422324, 512822, 527905, 739067, 1025644, 1055810, 1282055, 1478134, 1794877, 2111620, 2564110, 2956268, 3589754, 3695335, 5128220, 7179508, 7390670, 8974385, 12564139, 14781340, 17948770, 25128278, 35897540, 50256556, 62820695, 125641390, 251282780]

約数ペア:

[(1, 251282780), (2, 125641390), (4, 62820695), (5, 50256556), (7, 35897540), (10, 25128278), (14, 17948770), (17, 14781340), (20, 12564139), (28, 8974385), (34, 7390670), (35, 7179508), (49, 5128220), (68, 3695335), (70, 3589754), (85, 2956268), (98, 2564110), (119, 2111620), (140, 1794877), (170, 1478134), (196, 1282055), (238, 1055810), (245, 1025644), (340, 739067), (476, 527905), (490, 512822), (595, 422324), (833, 301660), (980, 256411), (1190, 211162), (1666, 150830), (2380, 105581), (3332, 75415), (4165, 60332), (8330, 30166), (15083, 16660)]