31313900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{16481}}^1$

素因数の和:16514

約数の個数: 36

約数和(自身を含む): 71531880

約数和(自身を除く): 40217980

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 16481, 32962, 65924, 82405, 164810, 313139, 329620, 412025, 626278, 824050, 1252556, 1565695, 1648100, 3131390, 6262780, 7828475, 15656950, 31313900]

約数ペア:

[(1, 31313900), (2, 15656950), (4, 7828475), (5, 6262780), (10, 3131390), (19, 1648100), (20, 1565695), (25, 1252556), (38, 824050), (50, 626278), (76, 412025), (95, 329620), (100, 313139), (190, 164810), (380, 82405), (475, 65924), (950, 32962), (1900, 16481)]