25693840

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{809}}^1$

素因数の和:1219

約数の個数: 40

約数和(自身を含む): 59962680

約数和(自身を除く): 34268840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 809, 1588, 1618, 1985, 3176, 3236, 3970, 4045, 6352, 6472, 7940, 8090, 12944, 15880, 16180, 31760, 32360, 64720, 321173, 642346, 1284692, 1605865, 2569384, 3211730, 5138768, 6423460, 12846920, 25693840]

約数ペア:

[(1, 25693840), (2, 12846920), (4, 6423460), (5, 5138768), (8, 3211730), (10, 2569384), (16, 1605865), (20, 1284692), (40, 642346), (80, 321173), (397, 64720), (794, 32360), (809, 31760), (1588, 16180), (1618, 15880), (1985, 12944), (3176, 8090), (3236, 7940), (3970, 6472), (4045, 6352)]