20222720

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:126

約数の個数: 144

約数和(自身を含む): 57787968

約数和(自身を除く): 37565248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 61, 64, 70, 74, 80, 112, 122, 128, 140, 148, 160, 185, 224, 244, 256, 259, 280, 296, 305, 320, 370, 427, 448, 488, 518, 560, 592, 610, 640, 740, 854, 896, 976, 1036, 1120, 1184, 1220, 1280, 1295, 1480, 1708, 1792, 1952, 2072, 2135, 2240, 2257, 2368, 2440, 2590, 2960, 3416, 3904, 4144, 4270, 4480, 4514, 4736, 4880, 5180, 5920, 6832, 7808, 8288, 8540, 8960, 9028, 9472, 9760, 10360, 11285, 11840, 13664, 15616, 15799, 16576, 17080, 18056, 19520, 20720, 22570, 23680, 27328, 31598, 33152, 34160, 36112, 39040, 41440, 45140, 47360, 54656, 63196, 66304, 68320, 72224, 78080, 78995, 82880, 90280, 109312, 126392, 136640, 144448, 157990, 165760, 180560, 252784, 273280, 288896, 315980, 331520, 361120, 505568, 546560, 577792, 631960, 722240, 1011136, 1263920, 1444480, 2022272, 2527840, 2888960, 4044544, 5055680, 10111360, 20222720]

約数ペア:

[(1, 20222720), (2, 10111360), (4, 5055680), (5, 4044544), (7, 2888960), (8, 2527840), (10, 2022272), (14, 1444480), (16, 1263920), (20, 1011136), (28, 722240), (32, 631960), (35, 577792), (37, 546560), (40, 505568), (56, 361120), (61, 331520), (64, 315980), (70, 288896), (74, 273280), (80, 252784), (112, 180560), (122, 165760), (128, 157990), (140, 144448), (148, 136640), (160, 126392), (185, 109312), (224, 90280), (244, 82880), (256, 78995), (259, 78080), (280, 72224), (296, 68320), (305, 66304), (320, 63196), (370, 54656), (427, 47360), (448, 45140), (488, 41440), (518, 39040), (560, 36112), (592, 34160), (610, 33152), (640, 31598), (740, 27328), (854, 23680), (896, 22570), (976, 20720), (1036, 19520), (1120, 18056), (1184, 17080), (1220, 16576), (1280, 15799), (1295, 15616), (1480, 13664), (1708, 11840), (1792, 11285), (1952, 10360), (2072, 9760), (2135, 9472), (2240, 9028), (2257, 8960), (2368, 8540), (2440, 8288), (2590, 7808), (2960, 6832), (3416, 5920), (3904, 5180), (4144, 4880), (4270, 4736), (4480, 4514)]