8744840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{251}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 21591360

約数和(自身を除く): 12846520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 104, 130, 134, 251, 260, 268, 335, 502, 520, 536, 670, 871, 1004, 1255, 1340, 1742, 2008, 2510, 2680, 3263, 3484, 4355, 5020, 6526, 6968, 8710, 10040, 13052, 16315, 16817, 17420, 26104, 32630, 33634, 34840, 65260, 67268, 84085, 130520, 134536, 168170, 218621, 336340, 437242, 672680, 874484, 1093105, 1748968, 2186210, 4372420, 8744840]

約数ペア:

[(1, 8744840), (2, 4372420), (4, 2186210), (5, 1748968), (8, 1093105), (10, 874484), (13, 672680), (20, 437242), (26, 336340), (40, 218621), (52, 168170), (65, 134536), (67, 130520), (104, 84085), (130, 67268), (134, 65260), (251, 34840), (260, 33634), (268, 32630), (335, 26104), (502, 17420), (520, 16817), (536, 16315), (670, 13052), (871, 10040), (1004, 8710), (1255, 6968), (1340, 6526), (1742, 5020), (2008, 4355), (2510, 3484), (2680, 3263)]