20971680

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43691}}^1$

素因数の和:43709

約数の個数: 48

約数和(自身を含む): 66062304

約数和(自身を除く): 45090624

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 43691, 87382, 131073, 174764, 218455, 262146, 349528, 436910, 524292, 655365, 699056, 873820, 1048584, 1310730, 1398112, 1747640, 2097168, 2621460, 3495280, 4194336, 5242920, 6990560, 10485840, 20971680]

約数ペア:

[(1, 20971680), (2, 10485840), (3, 6990560), (4, 5242920), (5, 4194336), (6, 3495280), (8, 2621460), (10, 2097168), (12, 1747640), (15, 1398112), (16, 1310730), (20, 1048584), (24, 873820), (30, 699056), (32, 655365), (40, 524292), (48, 436910), (60, 349528), (80, 262146), (96, 218455), (120, 174764), (160, 131073), (240, 87382), (480, 43691)]