63838640

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{19463}}^1$

素因数の和:19517

約数の個数: 40

約数和(自身を含む): 152052768

約数和(自身を除く): 88214128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 19463, 38926, 77852, 97315, 155704, 194630, 311408, 389260, 778520, 797983, 1557040, 1595966, 3191932, 3989915, 6383864, 7979830, 12767728, 15959660, 31919320, 63838640]

約数ペア:

[(1, 63838640), (2, 31919320), (4, 15959660), (5, 12767728), (8, 7979830), (10, 6383864), (16, 3989915), (20, 3191932), (40, 1595966), (41, 1557040), (80, 797983), (82, 778520), (164, 389260), (205, 311408), (328, 194630), (410, 155704), (656, 97315), (820, 77852), (1640, 38926), (3280, 19463)]