20677040

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1973}}^1$

素因数の和:2117

約数の個数: 40

約数和(自身を含む): 48465648

約数和(自身を除く): 27788608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 1973, 2096, 2620, 3946, 5240, 7892, 9865, 10480, 15784, 19730, 31568, 39460, 78920, 157840, 258463, 516926, 1033852, 1292315, 2067704, 2584630, 4135408, 5169260, 10338520, 20677040]

約数ペア:

[(1, 20677040), (2, 10338520), (4, 5169260), (5, 4135408), (8, 2584630), (10, 2067704), (16, 1292315), (20, 1033852), (40, 516926), (80, 258463), (131, 157840), (262, 78920), (524, 39460), (655, 31568), (1048, 19730), (1310, 15784), (1973, 10480), (2096, 9865), (2620, 7892), (3946, 5240)]