20756008

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4073}}^1$

素因数の和:4106

約数の個数: 48

約数和(自身を含む): 48765780

約数和(自身を除く): 28009772

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 4073, 5096, 8146, 16292, 28511, 32584, 52949, 57022, 105898, 114044, 199577, 211796, 228088, 370643, 399154, 423592, 741286, 798308, 1482572, 1596616, 2594501, 2965144, 5189002, 10378004, 20756008]

約数ペア:

[(1, 20756008), (2, 10378004), (4, 5189002), (7, 2965144), (8, 2594501), (13, 1596616), (14, 1482572), (26, 798308), (28, 741286), (49, 423592), (52, 399154), (56, 370643), (91, 228088), (98, 211796), (104, 199577), (182, 114044), (196, 105898), (364, 57022), (392, 52949), (637, 32584), (728, 28511), (1274, 16292), (2548, 8146), (4073, 5096)]