31916000

素因数分解:

$2^5\times 5^3\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:205

約数の個数: 96

約数和(自身を含む): 80196480

約数和(自身を除く): 48280480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 79, 80, 100, 101, 125, 158, 160, 200, 202, 250, 316, 395, 400, 404, 500, 505, 632, 790, 800, 808, 1000, 1010, 1264, 1580, 1616, 1975, 2000, 2020, 2525, 2528, 3160, 3232, 3950, 4000, 4040, 5050, 6320, 7900, 7979, 8080, 9875, 10100, 12625, 12640, 15800, 15958, 16160, 19750, 20200, 25250, 31600, 31916, 39500, 39895, 40400, 50500, 63200, 63832, 79000, 79790, 80800, 101000, 127664, 158000, 159580, 199475, 202000, 255328, 316000, 319160, 398950, 404000, 638320, 797900, 997375, 1276640, 1595800, 1994750, 3191600, 3989500, 6383200, 7979000, 15958000, 31916000]

約数ペア:

[(1, 31916000), (2, 15958000), (4, 7979000), (5, 6383200), (8, 3989500), (10, 3191600), (16, 1994750), (20, 1595800), (25, 1276640), (32, 997375), (40, 797900), (50, 638320), (79, 404000), (80, 398950), (100, 319160), (101, 316000), (125, 255328), (158, 202000), (160, 199475), (200, 159580), (202, 158000), (250, 127664), (316, 101000), (395, 80800), (400, 79790), (404, 79000), (500, 63832), (505, 63200), (632, 50500), (790, 40400), (800, 39895), (808, 39500), (1000, 31916), (1010, 31600), (1264, 25250), (1580, 20200), (1616, 19750), (1975, 16160), (2000, 15958), (2020, 15800), (2525, 12640), (2528, 12625), (3160, 10100), (3232, 9875), (3950, 8080), (4000, 7979), (4040, 7900), (5050, 6320)]