84880400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:321

約数の個数: 120

約数和(自身を含む): 225842688

約数和(自身を除く): 140962288

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 101, 110, 176, 191, 200, 202, 220, 275, 382, 400, 404, 440, 505, 550, 764, 808, 880, 955, 1010, 1100, 1111, 1528, 1616, 1910, 2020, 2101, 2200, 2222, 2525, 3056, 3820, 4040, 4202, 4400, 4444, 4775, 5050, 5555, 7640, 8080, 8404, 8888, 9550, 10100, 10505, 11110, 15280, 16808, 17776, 19100, 19291, 20200, 21010, 22220, 27775, 33616, 38200, 38582, 40400, 42020, 44440, 52525, 55550, 76400, 77164, 84040, 88880, 96455, 105050, 111100, 154328, 168080, 192910, 210100, 212201, 222200, 308656, 385820, 420200, 424402, 444400, 482275, 771640, 840400, 848804, 964550, 1061005, 1543280, 1697608, 1929100, 2122010, 3395216, 3858200, 4244020, 5305025, 7716400, 8488040, 10610050, 16976080, 21220100, 42440200, 84880400]

約数ペア:

[(1, 84880400), (2, 42440200), (4, 21220100), (5, 16976080), (8, 10610050), (10, 8488040), (11, 7716400), (16, 5305025), (20, 4244020), (22, 3858200), (25, 3395216), (40, 2122010), (44, 1929100), (50, 1697608), (55, 1543280), (80, 1061005), (88, 964550), (100, 848804), (101, 840400), (110, 771640), (176, 482275), (191, 444400), (200, 424402), (202, 420200), (220, 385820), (275, 308656), (382, 222200), (400, 212201), (404, 210100), (440, 192910), (505, 168080), (550, 154328), (764, 111100), (808, 105050), (880, 96455), (955, 88880), (1010, 84040), (1100, 77164), (1111, 76400), (1528, 55550), (1616, 52525), (1910, 44440), (2020, 42020), (2101, 40400), (2200, 38582), (2222, 38200), (2525, 33616), (3056, 27775), (3820, 22220), (4040, 21010), (4202, 20200), (4400, 19291), (4444, 19100), (4775, 17776), (5050, 16808), (5555, 15280), (7640, 11110), (8080, 10505), (8404, 10100), (8888, 9550)]