81253920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1399}}^1$

素因数の和:1439

約数の個数: 144

約数和(自身を含む): 281534400

約数和(自身を除く): 200280480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 121, 132, 160, 165, 176, 220, 240, 242, 264, 330, 352, 363, 440, 480, 484, 528, 605, 660, 726, 880, 968, 1056, 1210, 1320, 1399, 1452, 1760, 1815, 1936, 2420, 2640, 2798, 2904, 3630, 3872, 4197, 4840, 5280, 5596, 5808, 6995, 7260, 8394, 9680, 11192, 11616, 13990, 14520, 15389, 16788, 19360, 20985, 22384, 27980, 29040, 30778, 33576, 41970, 44768, 46167, 55960, 58080, 61556, 67152, 76945, 83940, 92334, 111920, 123112, 134304, 153890, 167880, 169279, 184668, 223840, 230835, 246224, 307780, 335760, 338558, 369336, 461670, 492448, 507837, 615560, 671520, 677116, 738672, 846395, 923340, 1015674, 1231120, 1354232, 1477344, 1692790, 1846680, 2031348, 2462240, 2539185, 2708464, 3385580, 3693360, 4062696, 5078370, 5416928, 6771160, 7386720, 8125392, 10156740, 13542320, 16250784, 20313480, 27084640, 40626960, 81253920]

約数ペア:

[(1, 81253920), (2, 40626960), (3, 27084640), (4, 20313480), (5, 16250784), (6, 13542320), (8, 10156740), (10, 8125392), (11, 7386720), (12, 6771160), (15, 5416928), (16, 5078370), (20, 4062696), (22, 3693360), (24, 3385580), (30, 2708464), (32, 2539185), (33, 2462240), (40, 2031348), (44, 1846680), (48, 1692790), (55, 1477344), (60, 1354232), (66, 1231120), (80, 1015674), (88, 923340), (96, 846395), (110, 738672), (120, 677116), (121, 671520), (132, 615560), (160, 507837), (165, 492448), (176, 461670), (220, 369336), (240, 338558), (242, 335760), (264, 307780), (330, 246224), (352, 230835), (363, 223840), (440, 184668), (480, 169279), (484, 167880), (528, 153890), (605, 134304), (660, 123112), (726, 111920), (880, 92334), (968, 83940), (1056, 76945), (1210, 67152), (1320, 61556), (1399, 58080), (1452, 55960), (1760, 46167), (1815, 44768), (1936, 41970), (2420, 33576), (2640, 30778), (2798, 29040), (2904, 27980), (3630, 22384), (3872, 20985), (4197, 19360), (4840, 16788), (5280, 15389), (5596, 14520), (5808, 13990), (6995, 11616), (7260, 11192), (8394, 9680)]