508720420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{2551}}^1$

素因数の和:2645

約数の個数: 72

約数和(自身を含む): 1176880320

約数和(自身を除く): 668159900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 59, 65, 118, 130, 169, 236, 260, 295, 338, 590, 676, 767, 845, 1180, 1534, 1690, 2551, 3068, 3380, 3835, 5102, 7670, 9971, 10204, 12755, 15340, 19942, 25510, 33163, 39884, 49855, 51020, 66326, 99710, 132652, 150509, 165815, 199420, 301018, 331630, 431119, 602036, 663260, 752545, 862238, 1505090, 1724476, 1956617, 2155595, 3010180, 3913234, 4311190, 7826468, 8622380, 9783085, 19566170, 25436021, 39132340, 50872042, 101744084, 127180105, 254360210, 508720420]

約数ペア:

[(1, 508720420), (2, 254360210), (4, 127180105), (5, 101744084), (10, 50872042), (13, 39132340), (20, 25436021), (26, 19566170), (52, 9783085), (59, 8622380), (65, 7826468), (118, 4311190), (130, 3913234), (169, 3010180), (236, 2155595), (260, 1956617), (295, 1724476), (338, 1505090), (590, 862238), (676, 752545), (767, 663260), (845, 602036), (1180, 431119), (1534, 331630), (1690, 301018), (2551, 199420), (3068, 165815), (3380, 150509), (3835, 132652), (5102, 99710), (7670, 66326), (9971, 51020), (10204, 49855), (12755, 39884), (15340, 33163), (19942, 25510)]