2013172775

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{487}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 2655871680

約数和(自身を除く): 642698905

約数列:

[1, 5, 25, 37, 41, 109, 185, 205, 487, 545, 925, 1025, 1517, 2435, 2725, 4033, 4469, 7585, 12175, 18019, 19967, 20165, 22345, 37925, 53083, 90095, 99835, 100825, 111725, 165353, 265415, 450475, 499175, 738779, 826765, 1327075, 1964071, 2176403, 3693895, 4133825, 9820355, 10882015, 18469475, 49101775, 54410075, 80526911, 402634555, 2013172775]

約数ペア:

[(1, 2013172775), (5, 402634555), (25, 80526911), (37, 54410075), (41, 49101775), (109, 18469475), (185, 10882015), (205, 9820355), (487, 4133825), (545, 3693895), (925, 2176403), (1025, 1964071), (1517, 1327075), (2435, 826765), (2725, 738779), (4033, 499175), (4469, 450475), (7585, 265415), (12175, 165353), (18019, 111725), (19967, 100825), (20165, 99835), (22345, 90095), (37925, 53083)]