68717680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{853}}^1$

素因数の和:938

約数の個数: 80

約数和(自身を含む): 171551520

約数和(自身を除く): 102833840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 53, 76, 80, 95, 106, 152, 190, 212, 265, 304, 380, 424, 530, 760, 848, 853, 1007, 1060, 1520, 1706, 2014, 2120, 3412, 4028, 4240, 4265, 5035, 6824, 8056, 8530, 10070, 13648, 16112, 16207, 17060, 20140, 32414, 34120, 40280, 45209, 64828, 68240, 80560, 81035, 90418, 129656, 162070, 180836, 226045, 259312, 324140, 361672, 452090, 648280, 723344, 858971, 904180, 1296560, 1717942, 1808360, 3435884, 3616720, 4294855, 6871768, 8589710, 13743536, 17179420, 34358840, 68717680]

約数ペア:

[(1, 68717680), (2, 34358840), (4, 17179420), (5, 13743536), (8, 8589710), (10, 6871768), (16, 4294855), (19, 3616720), (20, 3435884), (38, 1808360), (40, 1717942), (53, 1296560), (76, 904180), (80, 858971), (95, 723344), (106, 648280), (152, 452090), (190, 361672), (212, 324140), (265, 259312), (304, 226045), (380, 180836), (424, 162070), (530, 129656), (760, 90418), (848, 81035), (853, 80560), (1007, 68240), (1060, 64828), (1520, 45209), (1706, 40280), (2014, 34120), (2120, 32414), (3412, 20140), (4028, 17060), (4240, 16207), (4265, 16112), (5035, 13648), (6824, 10070), (8056, 8530)]