220115512

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{173}}^1\times {\mathrm{1787}}^1$

素因数の和:2055

約数の個数: 32

約数和(自身を含む): 420001200

約数和(自身を除く): 199885688

約数列:

[1, 2, 4, 8, 89, 173, 178, 346, 356, 692, 712, 1384, 1787, 3574, 7148, 14296, 15397, 30794, 61588, 123176, 159043, 309151, 318086, 618302, 636172, 1236604, 1272344, 2473208, 27514439, 55028878, 110057756, 220115512]

約数ペア:

[(1, 220115512), (2, 110057756), (4, 55028878), (8, 27514439), (89, 2473208), (173, 1272344), (178, 1236604), (346, 636172), (356, 618302), (692, 318086), (712, 309151), (1384, 159043), (1787, 123176), (3574, 61588), (7148, 30794), (14296, 15397)]