31237900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 73276560

約数和(自身を除く): 42038660

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 41, 50, 76, 82, 95, 100, 164, 190, 205, 380, 401, 410, 475, 779, 802, 820, 950, 1025, 1558, 1604, 1900, 2005, 2050, 3116, 3895, 4010, 4100, 7619, 7790, 8020, 10025, 15238, 15580, 16441, 19475, 20050, 30476, 32882, 38095, 38950, 40100, 65764, 76190, 77900, 82205, 152380, 164410, 190475, 312379, 328820, 380950, 411025, 624758, 761900, 822050, 1249516, 1561895, 1644100, 3123790, 6247580, 7809475, 15618950, 31237900]

約数ペア:

[(1, 31237900), (2, 15618950), (4, 7809475), (5, 6247580), (10, 3123790), (19, 1644100), (20, 1561895), (25, 1249516), (38, 822050), (41, 761900), (50, 624758), (76, 411025), (82, 380950), (95, 328820), (100, 312379), (164, 190475), (190, 164410), (205, 152380), (380, 82205), (401, 77900), (410, 76190), (475, 65764), (779, 40100), (802, 38950), (820, 38095), (950, 32882), (1025, 30476), (1558, 20050), (1604, 19475), (1900, 16441), (2005, 15580), (2050, 15238), (3116, 10025), (3895, 8020), (4010, 7790), (4100, 7619)]