30120700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:307

約数の個数: 72

約数和(自身を含む): 69995520

約数和(自身を除く): 39874820

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 83, 95, 100, 166, 190, 191, 332, 380, 382, 415, 475, 764, 830, 950, 955, 1577, 1660, 1900, 1910, 2075, 3154, 3629, 3820, 4150, 4775, 6308, 7258, 7885, 8300, 9550, 14516, 15770, 15853, 18145, 19100, 31540, 31706, 36290, 39425, 63412, 72580, 78850, 79265, 90725, 157700, 158530, 181450, 301207, 317060, 362900, 396325, 602414, 792650, 1204828, 1506035, 1585300, 3012070, 6024140, 7530175, 15060350, 30120700]

約数ペア:

[(1, 30120700), (2, 15060350), (4, 7530175), (5, 6024140), (10, 3012070), (19, 1585300), (20, 1506035), (25, 1204828), (38, 792650), (50, 602414), (76, 396325), (83, 362900), (95, 317060), (100, 301207), (166, 181450), (190, 158530), (191, 157700), (332, 90725), (380, 79265), (382, 78850), (415, 72580), (475, 63412), (764, 39425), (830, 36290), (950, 31706), (955, 31540), (1577, 19100), (1660, 18145), (1900, 15853), (1910, 15770), (2075, 14516), (3154, 9550), (3629, 8300), (3820, 7885), (4150, 7258), (4775, 6308)]