129957760

素因数分解:

$2^7\times 5^1\times {\mathrm{251}}^1\times {\mathrm{809}}^1$

素因数の和:1079

約数の個数: 64

約数和(自身を含む): 312303600

約数和(自身を除く): 182345840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 251, 320, 502, 640, 809, 1004, 1255, 1618, 2008, 2510, 3236, 4016, 4045, 5020, 6472, 8032, 8090, 10040, 12944, 16064, 16180, 20080, 25888, 32128, 32360, 40160, 51776, 64720, 80320, 103552, 129440, 160640, 203059, 258880, 406118, 517760, 812236, 1015295, 1624472, 2030590, 3248944, 4061180, 6497888, 8122360, 12995776, 16244720, 25991552, 32489440, 64978880, 129957760]

約数ペア:

[(1, 129957760), (2, 64978880), (4, 32489440), (5, 25991552), (8, 16244720), (10, 12995776), (16, 8122360), (20, 6497888), (32, 4061180), (40, 3248944), (64, 2030590), (80, 1624472), (128, 1015295), (160, 812236), (251, 517760), (320, 406118), (502, 258880), (640, 203059), (809, 160640), (1004, 129440), (1255, 103552), (1618, 80320), (2008, 64720), (2510, 51776), (3236, 40160), (4016, 32360), (4045, 32128), (5020, 25888), (6472, 20080), (8032, 16180), (8090, 16064), (10040, 12944)]