6720680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 16416000

約数和(自身を除く): 9695320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 74, 76, 95, 148, 152, 185, 190, 239, 296, 370, 380, 478, 703, 740, 760, 956, 1195, 1406, 1480, 1912, 2390, 2812, 3515, 4541, 4780, 5624, 7030, 8843, 9082, 9560, 14060, 17686, 18164, 22705, 28120, 35372, 36328, 44215, 45410, 70744, 88430, 90820, 168017, 176860, 181640, 336034, 353720, 672068, 840085, 1344136, 1680170, 3360340, 6720680]

約数ペア:

[(1, 6720680), (2, 3360340), (4, 1680170), (5, 1344136), (8, 840085), (10, 672068), (19, 353720), (20, 336034), (37, 181640), (38, 176860), (40, 168017), (74, 90820), (76, 88430), (95, 70744), (148, 45410), (152, 44215), (185, 36328), (190, 35372), (239, 28120), (296, 22705), (370, 18164), (380, 17686), (478, 14060), (703, 9560), (740, 9082), (760, 8843), (956, 7030), (1195, 5624), (1406, 4780), (1480, 4541), (1912, 3515), (2390, 2812)]