81988960

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{701}}^1$

素因数の和:776

約数の個数: 96

約数和(自身を含む): 210161952

約数和(自身を除く): 128172992

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 43, 68, 80, 85, 86, 136, 160, 170, 172, 215, 272, 340, 344, 430, 544, 680, 688, 701, 731, 860, 1360, 1376, 1402, 1462, 1720, 2720, 2804, 2924, 3440, 3505, 3655, 5608, 5848, 6880, 7010, 7310, 11216, 11696, 11917, 14020, 14620, 22432, 23392, 23834, 28040, 29240, 30143, 47668, 56080, 58480, 59585, 60286, 95336, 112160, 116960, 119170, 120572, 150715, 190672, 238340, 241144, 301430, 381344, 476680, 482288, 512431, 602860, 953360, 964576, 1024862, 1205720, 1906720, 2049724, 2411440, 2562155, 4099448, 4822880, 5124310, 8198896, 10248620, 16397792, 20497240, 40994480, 81988960]

約数ペア:

[(1, 81988960), (2, 40994480), (4, 20497240), (5, 16397792), (8, 10248620), (10, 8198896), (16, 5124310), (17, 4822880), (20, 4099448), (32, 2562155), (34, 2411440), (40, 2049724), (43, 1906720), (68, 1205720), (80, 1024862), (85, 964576), (86, 953360), (136, 602860), (160, 512431), (170, 482288), (172, 476680), (215, 381344), (272, 301430), (340, 241144), (344, 238340), (430, 190672), (544, 150715), (680, 120572), (688, 119170), (701, 116960), (731, 112160), (860, 95336), (1360, 60286), (1376, 59585), (1402, 58480), (1462, 56080), (1720, 47668), (2720, 30143), (2804, 29240), (2924, 28040), (3440, 23834), (3505, 23392), (3655, 22432), (5608, 14620), (5848, 14020), (6880, 11917), (7010, 11696), (7310, 11216)]