78581640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:311

約数の個数: 128

約数和(自身を含む): 245266560

約数和(自身を除く): 166684920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 97, 120, 129, 157, 172, 194, 215, 258, 291, 314, 344, 388, 430, 471, 485, 516, 582, 628, 645, 776, 785, 860, 942, 970, 1032, 1164, 1256, 1290, 1455, 1570, 1720, 1884, 1940, 2328, 2355, 2580, 2910, 3140, 3768, 3880, 4171, 4710, 5160, 5820, 6280, 6751, 8342, 9420, 11640, 12513, 13502, 15229, 16684, 18840, 20253, 20855, 25026, 27004, 30458, 33368, 33755, 40506, 41710, 45687, 50052, 54008, 60916, 62565, 67510, 76145, 81012, 83420, 91374, 100104, 101265, 121832, 125130, 135020, 152290, 162024, 166840, 182748, 202530, 228435, 250260, 270040, 304580, 365496, 405060, 456870, 500520, 609160, 654847, 810120, 913740, 1309694, 1827480, 1964541, 2619388, 3274235, 3929082, 5238776, 6548470, 7858164, 9822705, 13096940, 15716328, 19645410, 26193880, 39290820, 78581640]

約数ペア:

[(1, 78581640), (2, 39290820), (3, 26193880), (4, 19645410), (5, 15716328), (6, 13096940), (8, 9822705), (10, 7858164), (12, 6548470), (15, 5238776), (20, 3929082), (24, 3274235), (30, 2619388), (40, 1964541), (43, 1827480), (60, 1309694), (86, 913740), (97, 810120), (120, 654847), (129, 609160), (157, 500520), (172, 456870), (194, 405060), (215, 365496), (258, 304580), (291, 270040), (314, 250260), (344, 228435), (388, 202530), (430, 182748), (471, 166840), (485, 162024), (516, 152290), (582, 135020), (628, 125130), (645, 121832), (776, 101265), (785, 100104), (860, 91374), (942, 83420), (970, 81012), (1032, 76145), (1164, 67510), (1256, 62565), (1290, 60916), (1455, 54008), (1570, 50052), (1720, 45687), (1884, 41710), (1940, 40506), (2328, 33755), (2355, 33368), (2580, 30458), (2910, 27004), (3140, 25026), (3768, 20855), (3880, 20253), (4171, 18840), (4710, 16684), (5160, 15229), (5820, 13502), (6280, 12513), (6751, 11640), (8342, 9420)]