128362880

素因数分解:

$2^7\times 5^1\times {\mathrm{167}}^1\times {\mathrm{1201}}^1$

素因数の和:1387

約数の個数: 64

約数和(自身を含む): 308962080

約数和(自身を除く): 180599200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 167, 320, 334, 640, 668, 835, 1201, 1336, 1670, 2402, 2672, 3340, 4804, 5344, 6005, 6680, 9608, 10688, 12010, 13360, 19216, 21376, 24020, 26720, 38432, 48040, 53440, 76864, 96080, 106880, 153728, 192160, 200567, 384320, 401134, 768640, 802268, 1002835, 1604536, 2005670, 3209072, 4011340, 6418144, 8022680, 12836288, 16045360, 25672576, 32090720, 64181440, 128362880]

約数ペア:

[(1, 128362880), (2, 64181440), (4, 32090720), (5, 25672576), (8, 16045360), (10, 12836288), (16, 8022680), (20, 6418144), (32, 4011340), (40, 3209072), (64, 2005670), (80, 1604536), (128, 1002835), (160, 802268), (167, 768640), (320, 401134), (334, 384320), (640, 200567), (668, 192160), (835, 153728), (1201, 106880), (1336, 96080), (1670, 76864), (2402, 53440), (2672, 48040), (3340, 38432), (4804, 26720), (5344, 24020), (6005, 21376), (6680, 19216), (9608, 13360), (10688, 12010)]