1279685500

素因数分解:

$2^2\times 5^3\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{499}}^1$

素因数の和:764

約数の個数: 96

約数和(自身を含む): 2935296000

約数和(自身を除く): 1655610500

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 125, 223, 230, 250, 446, 460, 499, 500, 575, 892, 998, 1115, 1150, 1996, 2230, 2300, 2495, 2875, 4460, 4990, 5129, 5575, 5750, 9980, 10258, 11150, 11477, 11500, 12475, 20516, 22300, 22954, 24950, 25645, 27875, 45908, 49900, 51290, 55750, 57385, 62375, 102580, 111277, 111500, 114770, 124750, 128225, 222554, 229540, 249500, 256450, 286925, 445108, 512900, 556385, 573850, 641125, 1112770, 1147700, 1282250, 1434625, 2225540, 2559371, 2564500, 2781925, 2869250, 5118742, 5563850, 5738500, 10237484, 11127700, 12796855, 13909625, 25593710, 27819250, 51187420, 55638500, 63984275, 127968550, 255937100, 319921375, 639842750, 1279685500]

約数ペア:

[(1, 1279685500), (2, 639842750), (4, 319921375), (5, 255937100), (10, 127968550), (20, 63984275), (23, 55638500), (25, 51187420), (46, 27819250), (50, 25593710), (92, 13909625), (100, 12796855), (115, 11127700), (125, 10237484), (223, 5738500), (230, 5563850), (250, 5118742), (446, 2869250), (460, 2781925), (499, 2564500), (500, 2559371), (575, 2225540), (892, 1434625), (998, 1282250), (1115, 1147700), (1150, 1112770), (1996, 641125), (2230, 573850), (2300, 556385), (2495, 512900), (2875, 445108), (4460, 286925), (4990, 256450), (5129, 249500), (5575, 229540), (5750, 222554), (9980, 128225), (10258, 124750), (11150, 114770), (11477, 111500), (11500, 111277), (12475, 102580), (20516, 62375), (22300, 57385), (22954, 55750), (24950, 51290), (25645, 49900), (27875, 45908)]