81439864

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{5113}}^1$

素因数の和:5311

約数の個数: 32

約数和(自身を含む): 167534640

約数和(自身を除く): 86094776

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 181, 362, 724, 1448, 1991, 3982, 5113, 7964, 10226, 15928, 20452, 40904, 56243, 112486, 224972, 449944, 925453, 1850906, 3701812, 7403624, 10179983, 20359966, 40719932, 81439864]

約数ペア:

[(1, 81439864), (2, 40719932), (4, 20359966), (8, 10179983), (11, 7403624), (22, 3701812), (44, 1850906), (88, 925453), (181, 449944), (362, 224972), (724, 112486), (1448, 56243), (1991, 40904), (3982, 20452), (5113, 15928), (7964, 10226)]