394158640

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{769}}^1$

素因数の和:974

約数の個数: 80

約数和(自身を含む): 945252000

約数和(自身を除く): 551093360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 149, 172, 215, 298, 344, 430, 596, 688, 745, 769, 860, 1192, 1490, 1538, 1720, 2384, 2980, 3076, 3440, 3845, 5960, 6152, 6407, 7690, 11920, 12304, 12814, 15380, 25628, 30760, 32035, 33067, 51256, 61520, 64070, 66134, 102512, 114581, 128140, 132268, 165335, 229162, 256280, 264536, 330670, 458324, 512560, 529072, 572905, 661340, 916648, 1145810, 1322680, 1833296, 2291620, 2645360, 4583240, 4926983, 9166480, 9853966, 19707932, 24634915, 39415864, 49269830, 78831728, 98539660, 197079320, 394158640]

約数ペア:

[(1, 394158640), (2, 197079320), (4, 98539660), (5, 78831728), (8, 49269830), (10, 39415864), (16, 24634915), (20, 19707932), (40, 9853966), (43, 9166480), (80, 4926983), (86, 4583240), (149, 2645360), (172, 2291620), (215, 1833296), (298, 1322680), (344, 1145810), (430, 916648), (596, 661340), (688, 572905), (745, 529072), (769, 512560), (860, 458324), (1192, 330670), (1490, 264536), (1538, 256280), (1720, 229162), (2384, 165335), (2980, 132268), (3076, 128140), (3440, 114581), (3845, 102512), (5960, 66134), (6152, 64070), (6407, 61520), (7690, 51256), (11920, 33067), (12304, 32035), (12814, 30760), (15380, 25628)]