640252944

素因数分解:

$2^4\times 3^3\times {\mathrm{103}}^1\times {\mathrm{14389}}^1$

素因数の和:14509

約数の個数: 80

約数和(自身を含む): 1855734400

約数和(自身を除く): 1215481456

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 103, 108, 144, 206, 216, 309, 412, 432, 618, 824, 927, 1236, 1648, 1854, 2472, 2781, 3708, 4944, 5562, 7416, 11124, 14389, 14832, 22248, 28778, 43167, 44496, 57556, 86334, 115112, 129501, 172668, 230224, 259002, 345336, 388503, 518004, 690672, 777006, 1036008, 1482067, 1554012, 2072016, 2964134, 3108024, 4446201, 5928268, 6216048, 8892402, 11856536, 13338603, 17784804, 23713072, 26677206, 35569608, 40015809, 53354412, 71139216, 80031618, 106708824, 160063236, 213417648, 320126472, 640252944]

約数ペア:

[(1, 640252944), (2, 320126472), (3, 213417648), (4, 160063236), (6, 106708824), (8, 80031618), (9, 71139216), (12, 53354412), (16, 40015809), (18, 35569608), (24, 26677206), (27, 23713072), (36, 17784804), (48, 13338603), (54, 11856536), (72, 8892402), (103, 6216048), (108, 5928268), (144, 4446201), (206, 3108024), (216, 2964134), (309, 2072016), (412, 1554012), (432, 1482067), (618, 1036008), (824, 777006), (927, 690672), (1236, 518004), (1648, 388503), (1854, 345336), (2472, 259002), (2781, 230224), (3708, 172668), (4944, 129501), (5562, 115112), (7416, 86334), (11124, 57556), (14389, 44496), (14832, 43167), (22248, 28778)]