31889720

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{8219}}^1$

素因数の和:8327

約数の個数: 32

約数和(自身を含む): 72500400

約数和(自身を除く): 40610680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 8219, 16438, 32876, 41095, 65752, 82190, 164380, 328760, 797243, 1594486, 3188972, 3986215, 6377944, 7972430, 15944860, 31889720]

約数ペア:

[(1, 31889720), (2, 15944860), (4, 7972430), (5, 6377944), (8, 3986215), (10, 3188972), (20, 1594486), (40, 797243), (97, 328760), (194, 164380), (388, 82190), (485, 65752), (776, 41095), (970, 32876), (1940, 16438), (3880, 8219)]