18483720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:255

約数の個数: 128

約数和(自身を含む): 59754240

約数和(自身を除く): 41270520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 37, 40, 46, 60, 69, 74, 92, 111, 115, 120, 138, 148, 181, 184, 185, 222, 230, 276, 296, 345, 362, 370, 444, 460, 543, 552, 555, 690, 724, 740, 851, 888, 905, 920, 1086, 1110, 1380, 1448, 1480, 1702, 1810, 2172, 2220, 2553, 2715, 2760, 3404, 3620, 4163, 4255, 4344, 4440, 5106, 5430, 6697, 6808, 7240, 8326, 8510, 10212, 10860, 12489, 12765, 13394, 16652, 17020, 20091, 20424, 20815, 21720, 24978, 25530, 26788, 33304, 33485, 34040, 40182, 41630, 49956, 51060, 53576, 62445, 66970, 80364, 83260, 99912, 100455, 102120, 124890, 133940, 154031, 160728, 166520, 200910, 249780, 267880, 308062, 401820, 462093, 499560, 616124, 770155, 803640, 924186, 1232248, 1540310, 1848372, 2310465, 3080620, 3696744, 4620930, 6161240, 9241860, 18483720]

約数ペア:

[(1, 18483720), (2, 9241860), (3, 6161240), (4, 4620930), (5, 3696744), (6, 3080620), (8, 2310465), (10, 1848372), (12, 1540310), (15, 1232248), (20, 924186), (23, 803640), (24, 770155), (30, 616124), (37, 499560), (40, 462093), (46, 401820), (60, 308062), (69, 267880), (74, 249780), (92, 200910), (111, 166520), (115, 160728), (120, 154031), (138, 133940), (148, 124890), (181, 102120), (184, 100455), (185, 99912), (222, 83260), (230, 80364), (276, 66970), (296, 62445), (345, 53576), (362, 51060), (370, 49956), (444, 41630), (460, 40182), (543, 34040), (552, 33485), (555, 33304), (690, 26788), (724, 25530), (740, 24978), (851, 21720), (888, 20815), (905, 20424), (920, 20091), (1086, 17020), (1110, 16652), (1380, 13394), (1448, 12765), (1480, 12489), (1702, 10860), (1810, 10212), (2172, 8510), (2220, 8326), (2553, 7240), (2715, 6808), (2760, 6697), (3404, 5430), (3620, 5106), (4163, 4440), (4255, 4344)]