280255300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{1117}}^1$

素因数の和:1337

約数の個数: 72

約数和(自身を含む): 658917896

約数和(自身を除く): 378662596

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 193, 260, 325, 386, 650, 772, 965, 1117, 1300, 1930, 2234, 2509, 3860, 4468, 4825, 5018, 5585, 9650, 10036, 11170, 12545, 14521, 19300, 22340, 25090, 27925, 29042, 50180, 55850, 58084, 62725, 72605, 111700, 125450, 145210, 215581, 250900, 290420, 363025, 431162, 726050, 862324, 1077905, 1452100, 2155810, 2802553, 4311620, 5389525, 5605106, 10779050, 11210212, 14012765, 21558100, 28025530, 56051060, 70063825, 140127650, 280255300]

約数ペア:

[(1, 280255300), (2, 140127650), (4, 70063825), (5, 56051060), (10, 28025530), (13, 21558100), (20, 14012765), (25, 11210212), (26, 10779050), (50, 5605106), (52, 5389525), (65, 4311620), (100, 2802553), (130, 2155810), (193, 1452100), (260, 1077905), (325, 862324), (386, 726050), (650, 431162), (772, 363025), (965, 290420), (1117, 250900), (1300, 215581), (1930, 145210), (2234, 125450), (2509, 111700), (3860, 72605), (4468, 62725), (4825, 58084), (5018, 55850), (5585, 50180), (9650, 29042), (10036, 27925), (11170, 25090), (12545, 22340), (14521, 19300)]