77985960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49991}}^1$

素因数の和:50018

約数の個数: 64

約数和(自身を含む): 251959680

約数和(自身を除く): 173973720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 49991, 99982, 149973, 199964, 249955, 299946, 399928, 499910, 599892, 649883, 749865, 999820, 1199784, 1299766, 1499730, 1949649, 1999640, 2599532, 2999460, 3249415, 3899298, 5199064, 5998920, 6498830, 7798596, 9748245, 12997660, 15597192, 19496490, 25995320, 38992980, 77985960]

約数ペア:

[(1, 77985960), (2, 38992980), (3, 25995320), (4, 19496490), (5, 15597192), (6, 12997660), (8, 9748245), (10, 7798596), (12, 6498830), (13, 5998920), (15, 5199064), (20, 3899298), (24, 3249415), (26, 2999460), (30, 2599532), (39, 1999640), (40, 1949649), (52, 1499730), (60, 1299766), (65, 1199784), (78, 999820), (104, 749865), (120, 649883), (130, 599892), (156, 499910), (195, 399928), (260, 299946), (312, 249955), (390, 199964), (520, 149973), (780, 99982), (1560, 49991)]