18945360

素因数分解:

$2^4\times 3^3\times 5^1\times 7^2\times {\mathrm{179}}^1$

素因数の和:215

約数の個数: 240

約数和(自身を含む): 76334400

約数和(自身を除く): 57389040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 108, 112, 120, 126, 135, 140, 144, 147, 168, 179, 180, 189, 196, 210, 216, 240, 245, 252, 270, 280, 294, 315, 336, 358, 360, 378, 392, 420, 432, 441, 490, 504, 537, 540, 560, 588, 630, 716, 720, 735, 756, 784, 840, 882, 895, 945, 980, 1008, 1074, 1080, 1176, 1253, 1260, 1323, 1432, 1470, 1512, 1611, 1680, 1764, 1790, 1890, 1960, 2148, 2160, 2205, 2352, 2506, 2520, 2646, 2685, 2864, 2940, 3024, 3222, 3528, 3580, 3759, 3780, 3920, 4296, 4410, 4833, 5012, 5040, 5292, 5370, 5880, 6265, 6444, 6615, 7056, 7160, 7518, 7560, 8055, 8592, 8771, 8820, 9666, 10024, 10584, 10740, 11277, 11760, 12530, 12888, 13230, 14320, 15036, 15120, 16110, 17542, 17640, 18795, 19332, 20048, 21168, 21480, 22554, 24165, 25060, 25776, 26313, 26460, 30072, 32220, 33831, 35084, 35280, 37590, 38664, 42960, 43855, 45108, 48330, 50120, 52626, 52920, 56385, 60144, 64440, 67662, 70168, 75180, 77328, 78939, 87710, 90216, 96660, 100240, 105252, 105840, 112770, 128880, 131565, 135324, 140336, 150360, 157878, 169155, 175420, 180432, 193320, 210504, 225540, 236817, 263130, 270648, 300720, 315756, 338310, 350840, 386640, 394695, 421008, 451080, 473634, 526260, 541296, 631512, 676620, 701680, 789390, 902160, 947268, 1052520, 1184085, 1263024, 1353240, 1578780, 1894536, 2105040, 2368170, 2706480, 3157560, 3789072, 4736340, 6315120, 9472680, 18945360]

約数ペア:

[(1, 18945360), (2, 9472680), (3, 6315120), (4, 4736340), (5, 3789072), (6, 3157560), (7, 2706480), (8, 2368170), (9, 2105040), (10, 1894536), (12, 1578780), (14, 1353240), (15, 1263024), (16, 1184085), (18, 1052520), (20, 947268), (21, 902160), (24, 789390), (27, 701680), (28, 676620), (30, 631512), (35, 541296), (36, 526260), (40, 473634), (42, 451080), (45, 421008), (48, 394695), (49, 386640), (54, 350840), (56, 338310), (60, 315756), (63, 300720), (70, 270648), (72, 263130), (80, 236817), (84, 225540), (90, 210504), (98, 193320), (105, 180432), (108, 175420), (112, 169155), (120, 157878), (126, 150360), (135, 140336), (140, 135324), (144, 131565), (147, 128880), (168, 112770), (179, 105840), (180, 105252), (189, 100240), (196, 96660), (210, 90216), (216, 87710), (240, 78939), (245, 77328), (252, 75180), (270, 70168), (280, 67662), (294, 64440), (315, 60144), (336, 56385), (358, 52920), (360, 52626), (378, 50120), (392, 48330), (420, 45108), (432, 43855), (441, 42960), (490, 38664), (504, 37590), (537, 35280), (540, 35084), (560, 33831), (588, 32220), (630, 30072), (716, 26460), (720, 26313), (735, 25776), (756, 25060), (784, 24165), (840, 22554), (882, 21480), (895, 21168), (945, 20048), (980, 19332), (1008, 18795), (1074, 17640), (1080, 17542), (1176, 16110), (1253, 15120), (1260, 15036), (1323, 14320), (1432, 13230), (1470, 12888), (1512, 12530), (1611, 11760), (1680, 11277), (1764, 10740), (1790, 10584), (1890, 10024), (1960, 9666), (2148, 8820), (2160, 8771), (2205, 8592), (2352, 8055), (2506, 7560), (2520, 7518), (2646, 7160), (2685, 7056), (2864, 6615), (2940, 6444), (3024, 6265), (3222, 5880), (3528, 5370), (3580, 5292), (3759, 5040), (3780, 5012), (3920, 4833), (4296, 4410)]