209400540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{81163}}^1$

素因数の和:81218

約数の個数: 48

約数和(自身を含む): 599964288

約数和(自身を除く): 390563748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 81163, 162326, 243489, 324652, 405815, 486978, 811630, 973956, 1217445, 1623260, 2434890, 3490009, 4869780, 6980018, 10470027, 13960036, 17450045, 20940054, 34900090, 41880108, 52350135, 69800180, 104700270, 209400540]

約数ペア:

[(1, 209400540), (2, 104700270), (3, 69800180), (4, 52350135), (5, 41880108), (6, 34900090), (10, 20940054), (12, 17450045), (15, 13960036), (20, 10470027), (30, 6980018), (43, 4869780), (60, 3490009), (86, 2434890), (129, 1623260), (172, 1217445), (215, 973956), (258, 811630), (430, 486978), (516, 405815), (645, 324652), (860, 243489), (1290, 162326), (2580, 81163)]