641280

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{167}}^1$

素因数の和:191

約数の個数: 72

約数和(自身を含む): 2060352

約数和(自身を除く): 1419072

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 167, 192, 240, 256, 320, 334, 384, 480, 501, 640, 668, 768, 835, 960, 1002, 1280, 1336, 1670, 1920, 2004, 2505, 2672, 3340, 3840, 4008, 5010, 5344, 6680, 8016, 10020, 10688, 13360, 16032, 20040, 21376, 26720, 32064, 40080, 42752, 53440, 64128, 80160, 106880, 128256, 160320, 213760, 320640, 641280]

約数ペア:

[(1, 641280), (2, 320640), (3, 213760), (4, 160320), (5, 128256), (6, 106880), (8, 80160), (10, 64128), (12, 53440), (15, 42752), (16, 40080), (20, 32064), (24, 26720), (30, 21376), (32, 20040), (40, 16032), (48, 13360), (60, 10688), (64, 10020), (80, 8016), (96, 6680), (120, 5344), (128, 5010), (160, 4008), (167, 3840), (192, 3340), (240, 2672), (256, 2505), (320, 2004), (334, 1920), (384, 1670), (480, 1336), (501, 1280), (640, 1002), (668, 960), (768, 835)]