18936720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{797}}^1$

素因数の和:830

約数の個数: 160

約数和(自身を含む): 71245440

約数和(自身を除く): 52308720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 88, 90, 99, 108, 110, 120, 132, 135, 144, 165, 176, 180, 198, 216, 220, 240, 264, 270, 297, 330, 360, 396, 432, 440, 495, 528, 540, 594, 660, 720, 792, 797, 880, 990, 1080, 1188, 1320, 1485, 1584, 1594, 1980, 2160, 2376, 2391, 2640, 2970, 3188, 3960, 3985, 4752, 4782, 5940, 6376, 7173, 7920, 7970, 8767, 9564, 11880, 11955, 12752, 14346, 15940, 17534, 19128, 21519, 23760, 23910, 26301, 28692, 31880, 35068, 35865, 38256, 43038, 43835, 47820, 52602, 57384, 63760, 70136, 71730, 78903, 86076, 87670, 95640, 105204, 107595, 114768, 131505, 140272, 143460, 157806, 172152, 175340, 191280, 210408, 215190, 236709, 263010, 286920, 315612, 344304, 350680, 394515, 420816, 430380, 473418, 526020, 573840, 631224, 701360, 789030, 860760, 946836, 1052040, 1183545, 1262448, 1578060, 1721520, 1893672, 2104080, 2367090, 3156120, 3787344, 4734180, 6312240, 9468360, 18936720]

約数ペア:

[(1, 18936720), (2, 9468360), (3, 6312240), (4, 4734180), (5, 3787344), (6, 3156120), (8, 2367090), (9, 2104080), (10, 1893672), (11, 1721520), (12, 1578060), (15, 1262448), (16, 1183545), (18, 1052040), (20, 946836), (22, 860760), (24, 789030), (27, 701360), (30, 631224), (33, 573840), (36, 526020), (40, 473418), (44, 430380), (45, 420816), (48, 394515), (54, 350680), (55, 344304), (60, 315612), (66, 286920), (72, 263010), (80, 236709), (88, 215190), (90, 210408), (99, 191280), (108, 175340), (110, 172152), (120, 157806), (132, 143460), (135, 140272), (144, 131505), (165, 114768), (176, 107595), (180, 105204), (198, 95640), (216, 87670), (220, 86076), (240, 78903), (264, 71730), (270, 70136), (297, 63760), (330, 57384), (360, 52602), (396, 47820), (432, 43835), (440, 43038), (495, 38256), (528, 35865), (540, 35068), (594, 31880), (660, 28692), (720, 26301), (792, 23910), (797, 23760), (880, 21519), (990, 19128), (1080, 17534), (1188, 15940), (1320, 14346), (1485, 12752), (1584, 11955), (1594, 11880), (1980, 9564), (2160, 8767), (2376, 7970), (2391, 7920), (2640, 7173), (2970, 6376), (3188, 5940), (3960, 4782), (3985, 4752)]