538492700

素因数分解:

$2^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1$

素因数の和:639

約数の個数: 72

約数和(自身を含む): 1191590400

約数和(自身を除く): 653097700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 127, 218, 254, 389, 436, 508, 545, 635, 778, 1090, 1270, 1556, 1945, 2180, 2540, 2725, 3175, 3890, 5450, 6350, 7780, 9725, 10900, 12700, 13843, 19450, 27686, 38900, 42401, 49403, 55372, 69215, 84802, 98806, 138430, 169604, 197612, 212005, 247015, 276860, 346075, 424010, 494030, 692150, 848020, 988060, 1060025, 1235075, 1384300, 2120050, 2470150, 4240100, 4940300, 5384927, 10769854, 21539708, 26924635, 53849270, 107698540, 134623175, 269246350, 538492700]

約数ペア:

[(1, 538492700), (2, 269246350), (4, 134623175), (5, 107698540), (10, 53849270), (20, 26924635), (25, 21539708), (50, 10769854), (100, 5384927), (109, 4940300), (127, 4240100), (218, 2470150), (254, 2120050), (389, 1384300), (436, 1235075), (508, 1060025), (545, 988060), (635, 848020), (778, 692150), (1090, 494030), (1270, 424010), (1556, 346075), (1945, 276860), (2180, 247015), (2540, 212005), (2725, 197612), (3175, 169604), (3890, 138430), (5450, 98806), (6350, 84802), (7780, 69215), (9725, 55372), (10900, 49403), (12700, 42401), (13843, 38900), (19450, 27686)]