131142940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{467}}^1\times {\mathrm{739}}^1$

素因数の和:1234

約数の個数: 48

約数和(自身を含む): 290908800

約数和(自身を除く): 159765860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 467, 739, 934, 1478, 1868, 2335, 2956, 3695, 4670, 7390, 8873, 9340, 14041, 14780, 17746, 28082, 35492, 44365, 56164, 70205, 88730, 140410, 177460, 280820, 345113, 690226, 1380452, 1725565, 3451130, 6557147, 6902260, 13114294, 26228588, 32785735, 65571470, 131142940]

約数ペア:

[(1, 131142940), (2, 65571470), (4, 32785735), (5, 26228588), (10, 13114294), (19, 6902260), (20, 6557147), (38, 3451130), (76, 1725565), (95, 1380452), (190, 690226), (380, 345113), (467, 280820), (739, 177460), (934, 140410), (1478, 88730), (1868, 70205), (2335, 56164), (2956, 44365), (3695, 35492), (4670, 28082), (7390, 17746), (8873, 14780), (9340, 14041)]