20944960

素因数分解:

$2^6\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:144

約数の個数: 112

約数和(自身を含む): 53858160

約数和(自身を除く): 32913200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 37, 40, 58, 61, 64, 74, 80, 116, 122, 145, 148, 160, 185, 232, 244, 290, 296, 305, 320, 370, 464, 488, 580, 592, 610, 740, 928, 976, 1073, 1160, 1184, 1220, 1480, 1769, 1856, 1952, 2146, 2257, 2320, 2368, 2440, 2960, 3538, 3904, 4292, 4514, 4640, 4880, 5365, 5920, 7076, 8584, 8845, 9028, 9280, 9760, 10730, 11285, 11840, 14152, 17168, 17690, 18056, 19520, 21460, 22570, 28304, 34336, 35380, 36112, 42920, 45140, 56608, 65453, 68672, 70760, 72224, 85840, 90280, 113216, 130906, 141520, 144448, 171680, 180560, 261812, 283040, 327265, 343360, 361120, 523624, 566080, 654530, 722240, 1047248, 1309060, 2094496, 2618120, 4188992, 5236240, 10472480, 20944960]

約数ペア:

[(1, 20944960), (2, 10472480), (4, 5236240), (5, 4188992), (8, 2618120), (10, 2094496), (16, 1309060), (20, 1047248), (29, 722240), (32, 654530), (37, 566080), (40, 523624), (58, 361120), (61, 343360), (64, 327265), (74, 283040), (80, 261812), (116, 180560), (122, 171680), (145, 144448), (148, 141520), (160, 130906), (185, 113216), (232, 90280), (244, 85840), (290, 72224), (296, 70760), (305, 68672), (320, 65453), (370, 56608), (464, 45140), (488, 42920), (580, 36112), (592, 35380), (610, 34336), (740, 28304), (928, 22570), (976, 21460), (1073, 19520), (1160, 18056), (1184, 17690), (1220, 17168), (1480, 14152), (1769, 11840), (1856, 11285), (1952, 10730), (2146, 9760), (2257, 9280), (2320, 9028), (2368, 8845), (2440, 8584), (2960, 7076), (3538, 5920), (3904, 5365), (4292, 4880), (4514, 4640)]