31876280

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{4889}}^1$

素因数の和:5063

約数の個数: 32

約数和(自身を含む): 72176400

約数和(自身を除く): 40300120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 4889, 6520, 9778, 19556, 24445, 39112, 48890, 97780, 195560, 796907, 1593814, 3187628, 3984535, 6375256, 7969070, 15938140, 31876280]

約数ペア:

[(1, 31876280), (2, 15938140), (4, 7969070), (5, 6375256), (8, 3984535), (10, 3187628), (20, 1593814), (40, 796907), (163, 195560), (326, 97780), (652, 48890), (815, 39112), (1304, 24445), (1630, 19556), (3260, 9778), (4889, 6520)]