20237600

素因数分解:

$2^5\times 5^2\times {\mathrm{41}}^1\times {\mathrm{617}}^1$

素因数の和:678

約数の個数: 72

約数和(自身を含む): 50692068

約数和(自身を除く): 30454468

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 80, 82, 100, 160, 164, 200, 205, 328, 400, 410, 617, 656, 800, 820, 1025, 1234, 1312, 1640, 2050, 2468, 3085, 3280, 4100, 4936, 6170, 6560, 8200, 9872, 12340, 15425, 16400, 19744, 24680, 25297, 30850, 32800, 49360, 50594, 61700, 98720, 101188, 123400, 126485, 202376, 246800, 252970, 404752, 493600, 505940, 632425, 809504, 1011880, 1264850, 2023760, 2529700, 4047520, 5059400, 10118800, 20237600]

約数ペア:

[(1, 20237600), (2, 10118800), (4, 5059400), (5, 4047520), (8, 2529700), (10, 2023760), (16, 1264850), (20, 1011880), (25, 809504), (32, 632425), (40, 505940), (41, 493600), (50, 404752), (80, 252970), (82, 246800), (100, 202376), (160, 126485), (164, 123400), (200, 101188), (205, 98720), (328, 61700), (400, 50594), (410, 49360), (617, 32800), (656, 30850), (800, 25297), (820, 24680), (1025, 19744), (1234, 16400), (1312, 15425), (1640, 12340), (2050, 9872), (2468, 8200), (3085, 6560), (3280, 6170), (4100, 4936)]