81272480

素因数分解:

$2^5\times 5^1\times {\mathrm{507953}}^1$

素因数の和:507968

約数の個数: 24

約数和(自身を含む): 192006612

約数和(自身を除く): 110734132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 507953, 1015906, 2031812, 2539765, 4063624, 5079530, 8127248, 10159060, 16254496, 20318120, 40636240, 81272480]

約数ペア:

[(1, 81272480), (2, 40636240), (4, 20318120), (5, 16254496), (8, 10159060), (10, 8127248), (16, 5079530), (20, 4063624), (32, 2539765), (40, 2031812), (80, 1015906), (160, 507953)]