31066900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:313

約数の個数: 72

約数和(自身を含む): 72182880

約数和(自身を除く): 41115980

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 83, 95, 100, 166, 190, 197, 332, 380, 394, 415, 475, 788, 830, 950, 985, 1577, 1660, 1900, 1970, 2075, 3154, 3743, 3940, 4150, 4925, 6308, 7486, 7885, 8300, 9850, 14972, 15770, 16351, 18715, 19700, 31540, 32702, 37430, 39425, 65404, 74860, 78850, 81755, 93575, 157700, 163510, 187150, 310669, 327020, 374300, 408775, 621338, 817550, 1242676, 1553345, 1635100, 3106690, 6213380, 7766725, 15533450, 31066900]

約数ペア:

[(1, 31066900), (2, 15533450), (4, 7766725), (5, 6213380), (10, 3106690), (19, 1635100), (20, 1553345), (25, 1242676), (38, 817550), (50, 621338), (76, 408775), (83, 374300), (95, 327020), (100, 310669), (166, 187150), (190, 163510), (197, 157700), (332, 93575), (380, 81755), (394, 78850), (415, 74860), (475, 65404), (788, 39425), (830, 37430), (950, 32702), (985, 31540), (1577, 19700), (1660, 18715), (1900, 16351), (1970, 15770), (2075, 14972), (3154, 9850), (3743, 8300), (3940, 7885), (4150, 7486), (4925, 6308)]