640097928

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{241}}^1\times {\mathrm{997}}^1$

素因数の和:1287

約数の個数: 96

約数和(自身を含む): 1789633560

約数和(自身を除く): 1149535632

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 74, 111, 148, 222, 241, 296, 333, 444, 482, 666, 723, 888, 964, 997, 1332, 1446, 1928, 1994, 2169, 2664, 2892, 2991, 3988, 4338, 5784, 5982, 7976, 8676, 8917, 8973, 11964, 17352, 17834, 17946, 23928, 26751, 35668, 35892, 36889, 53502, 71336, 71784, 73778, 80253, 107004, 110667, 147556, 160506, 214008, 221334, 240277, 295112, 321012, 332001, 442668, 480554, 642024, 664002, 720831, 885336, 961108, 1328004, 1441662, 1922216, 2162493, 2656008, 2883324, 4324986, 5766648, 8649972, 8890249, 17299944, 17780498, 26670747, 35560996, 53341494, 71121992, 80012241, 106682988, 160024482, 213365976, 320048964, 640097928]

約数ペア:

[(1, 640097928), (2, 320048964), (3, 213365976), (4, 160024482), (6, 106682988), (8, 80012241), (9, 71121992), (12, 53341494), (18, 35560996), (24, 26670747), (36, 17780498), (37, 17299944), (72, 8890249), (74, 8649972), (111, 5766648), (148, 4324986), (222, 2883324), (241, 2656008), (296, 2162493), (333, 1922216), (444, 1441662), (482, 1328004), (666, 961108), (723, 885336), (888, 720831), (964, 664002), (997, 642024), (1332, 480554), (1446, 442668), (1928, 332001), (1994, 321012), (2169, 295112), (2664, 240277), (2892, 221334), (2991, 214008), (3988, 160506), (4338, 147556), (5784, 110667), (5982, 107004), (7976, 80253), (8676, 73778), (8917, 71784), (8973, 71336), (11964, 53502), (17352, 36889), (17834, 35892), (17946, 35668), (23928, 26751)]