21764800

素因数分解:

$2^6\times 5^2\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:306

約数の個数: 84

約数和(自身を含む): 54677056

約数和(自身を除く): 32912256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 61, 64, 80, 100, 122, 160, 200, 223, 244, 305, 320, 400, 446, 488, 610, 800, 892, 976, 1115, 1220, 1525, 1600, 1784, 1952, 2230, 2440, 3050, 3568, 3904, 4460, 4880, 5575, 6100, 7136, 8920, 9760, 11150, 12200, 13603, 14272, 17840, 19520, 22300, 24400, 27206, 35680, 44600, 48800, 54412, 68015, 71360, 89200, 97600, 108824, 136030, 178400, 217648, 272060, 340075, 356800, 435296, 544120, 680150, 870592, 1088240, 1360300, 2176480, 2720600, 4352960, 5441200, 10882400, 21764800]

約数ペア:

[(1, 21764800), (2, 10882400), (4, 5441200), (5, 4352960), (8, 2720600), (10, 2176480), (16, 1360300), (20, 1088240), (25, 870592), (32, 680150), (40, 544120), (50, 435296), (61, 356800), (64, 340075), (80, 272060), (100, 217648), (122, 178400), (160, 136030), (200, 108824), (223, 97600), (244, 89200), (305, 71360), (320, 68015), (400, 54412), (446, 48800), (488, 44600), (610, 35680), (800, 27206), (892, 24400), (976, 22300), (1115, 19520), (1220, 17840), (1525, 14272), (1600, 13603), (1784, 12200), (1952, 11150), (2230, 9760), (2440, 8920), (3050, 7136), (3568, 6100), (3904, 5575), (4460, 4880)]