21472439200

素因数分解:

$2^5\times 5^2\times {\mathrm{61}}^1\times {\mathrm{440009}}^1$

素因数の和:440090

約数の個数: 72

約数和(自身を含む): 53279050860

約数和(自身を除く): 31806611660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 61, 80, 100, 122, 160, 200, 244, 305, 400, 488, 610, 800, 976, 1220, 1525, 1952, 2440, 3050, 4880, 6100, 9760, 12200, 24400, 48800, 440009, 880018, 1760036, 2200045, 3520072, 4400090, 7040144, 8800180, 11000225, 14080288, 17600360, 22000450, 26840549, 35200720, 44000900, 53681098, 70401440, 88001800, 107362196, 134202745, 176003600, 214724392, 268405490, 352007200, 429448784, 536810980, 671013725, 858897568, 1073621960, 1342027450, 2147243920, 2684054900, 4294487840, 5368109800, 10736219600, 21472439200]

約数ペア:

[(1, 21472439200), (2, 10736219600), (4, 5368109800), (5, 4294487840), (8, 2684054900), (10, 2147243920), (16, 1342027450), (20, 1073621960), (25, 858897568), (32, 671013725), (40, 536810980), (50, 429448784), (61, 352007200), (80, 268405490), (100, 214724392), (122, 176003600), (160, 134202745), (200, 107362196), (244, 88001800), (305, 70401440), (400, 53681098), (488, 44000900), (610, 35200720), (800, 26840549), (976, 22000450), (1220, 17600360), (1525, 14080288), (1952, 11000225), (2440, 8800180), (3050, 7040144), (4880, 4400090), (6100, 3520072), (9760, 2200045), (12200, 1760036), (24400, 880018), (48800, 440009)]