128410720

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:360

約数の個数: 96

約数和(自身を含む): 316008000

約数和(自身を除く): 187597280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 109, 148, 160, 185, 199, 218, 296, 370, 398, 436, 545, 592, 740, 796, 872, 995, 1090, 1184, 1480, 1592, 1744, 1990, 2180, 2960, 3184, 3488, 3980, 4033, 4360, 5920, 6368, 7363, 7960, 8066, 8720, 14726, 15920, 16132, 17440, 20165, 21691, 29452, 31840, 32264, 36815, 40330, 43382, 58904, 64528, 73630, 80660, 86764, 108455, 117808, 129056, 147260, 161320, 173528, 216910, 235616, 294520, 322640, 347056, 433820, 589040, 645280, 694112, 802567, 867640, 1178080, 1605134, 1735280, 3210268, 3470560, 4012835, 6420536, 8025670, 12841072, 16051340, 25682144, 32102680, 64205360, 128410720]

約数ペア:

[(1, 128410720), (2, 64205360), (4, 32102680), (5, 25682144), (8, 16051340), (10, 12841072), (16, 8025670), (20, 6420536), (32, 4012835), (37, 3470560), (40, 3210268), (74, 1735280), (80, 1605134), (109, 1178080), (148, 867640), (160, 802567), (185, 694112), (199, 645280), (218, 589040), (296, 433820), (370, 347056), (398, 322640), (436, 294520), (545, 235616), (592, 216910), (740, 173528), (796, 161320), (872, 147260), (995, 129056), (1090, 117808), (1184, 108455), (1480, 86764), (1592, 80660), (1744, 73630), (1990, 64528), (2180, 58904), (2960, 43382), (3184, 40330), (3488, 36815), (3980, 32264), (4033, 31840), (4360, 29452), (5920, 21691), (6368, 20165), (7363, 17440), (7960, 16132), (8066, 15920), (8720, 14726)]