27249920

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:431

約数の個数: 72

約数和(自身を含む): 66532200

約数和(自身を除く): 39282280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 349, 488, 610, 640, 698, 976, 1220, 1280, 1396, 1745, 1952, 2440, 2792, 3490, 3904, 4880, 5584, 6980, 7808, 9760, 11168, 13960, 15616, 19520, 21289, 22336, 27920, 39040, 42578, 44672, 55840, 78080, 85156, 89344, 106445, 111680, 170312, 212890, 223360, 340624, 425780, 446720, 681248, 851560, 1362496, 1703120, 2724992, 3406240, 5449984, 6812480, 13624960, 27249920]

約数ペア:

[(1, 27249920), (2, 13624960), (4, 6812480), (5, 5449984), (8, 3406240), (10, 2724992), (16, 1703120), (20, 1362496), (32, 851560), (40, 681248), (61, 446720), (64, 425780), (80, 340624), (122, 223360), (128, 212890), (160, 170312), (244, 111680), (256, 106445), (305, 89344), (320, 85156), (349, 78080), (488, 55840), (610, 44672), (640, 42578), (698, 39040), (976, 27920), (1220, 22336), (1280, 21289), (1396, 19520), (1745, 15616), (1952, 13960), (2440, 11168), (2792, 9760), (3490, 7808), (3904, 6980), (4880, 5584)]