28418040

素因数分解:

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

素因数の和:216

約数の個数: 240

約数和(自身を含む): 111731400

約数和(自身を除く): 83313360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 49, 54, 56, 60, 63, 70, 72, 81, 84, 90, 98, 105, 108, 120, 126, 135, 140, 147, 162, 168, 179, 180, 189, 196, 210, 216, 245, 252, 270, 280, 294, 315, 324, 358, 360, 378, 392, 405, 420, 441, 490, 504, 537, 540, 567, 588, 630, 648, 716, 735, 756, 810, 840, 882, 895, 945, 980, 1074, 1080, 1134, 1176, 1253, 1260, 1323, 1432, 1470, 1512, 1611, 1620, 1764, 1790, 1890, 1960, 2148, 2205, 2268, 2506, 2520, 2646, 2685, 2835, 2940, 3222, 3240, 3528, 3580, 3759, 3780, 3969, 4296, 4410, 4536, 4833, 5012, 5292, 5370, 5670, 5880, 6265, 6444, 6615, 7160, 7518, 7560, 7938, 8055, 8771, 8820, 9666, 10024, 10584, 10740, 11277, 11340, 12530, 12888, 13230, 14499, 15036, 15876, 16110, 17542, 17640, 18795, 19332, 19845, 21480, 22554, 22680, 24165, 25060, 26313, 26460, 28998, 30072, 31752, 32220, 33831, 35084, 37590, 38664, 39690, 43855, 45108, 48330, 50120, 52626, 52920, 56385, 57996, 64440, 67662, 70168, 72495, 75180, 78939, 79380, 87710, 90216, 96660, 101493, 105252, 112770, 115992, 131565, 135324, 144990, 150360, 157878, 158760, 169155, 175420, 193320, 202986, 210504, 225540, 236817, 263130, 270648, 289980, 315756, 338310, 350840, 394695, 405972, 451080, 473634, 507465, 526260, 579960, 631512, 676620, 710451, 789390, 811944, 947268, 1014930, 1052520, 1184085, 1353240, 1420902, 1578780, 1894536, 2029860, 2368170, 2841804, 3157560, 3552255, 4059720, 4736340, 5683608, 7104510, 9472680, 14209020, 28418040]

約数ペア:

[(1, 28418040), (2, 14209020), (3, 9472680), (4, 7104510), (5, 5683608), (6, 4736340), (7, 4059720), (8, 3552255), (9, 3157560), (10, 2841804), (12, 2368170), (14, 2029860), (15, 1894536), (18, 1578780), (20, 1420902), (21, 1353240), (24, 1184085), (27, 1052520), (28, 1014930), (30, 947268), (35, 811944), (36, 789390), (40, 710451), (42, 676620), (45, 631512), (49, 579960), (54, 526260), (56, 507465), (60, 473634), (63, 451080), (70, 405972), (72, 394695), (81, 350840), (84, 338310), (90, 315756), (98, 289980), (105, 270648), (108, 263130), (120, 236817), (126, 225540), (135, 210504), (140, 202986), (147, 193320), (162, 175420), (168, 169155), (179, 158760), (180, 157878), (189, 150360), (196, 144990), (210, 135324), (216, 131565), (245, 115992), (252, 112770), (270, 105252), (280, 101493), (294, 96660), (315, 90216), (324, 87710), (358, 79380), (360, 78939), (378, 75180), (392, 72495), (405, 70168), (420, 67662), (441, 64440), (490, 57996), (504, 56385), (537, 52920), (540, 52626), (567, 50120), (588, 48330), (630, 45108), (648, 43855), (716, 39690), (735, 38664), (756, 37590), (810, 35084), (840, 33831), (882, 32220), (895, 31752), (945, 30072), (980, 28998), (1074, 26460), (1080, 26313), (1134, 25060), (1176, 24165), (1253, 22680), (1260, 22554), (1323, 21480), (1432, 19845), (1470, 19332), (1512, 18795), (1611, 17640), (1620, 17542), (1764, 16110), (1790, 15876), (1890, 15036), (1960, 14499), (2148, 13230), (2205, 12888), (2268, 12530), (2506, 11340), (2520, 11277), (2646, 10740), (2685, 10584), (2835, 10024), (2940, 9666), (3222, 8820), (3240, 8771), (3528, 8055), (3580, 7938), (3759, 7560), (3780, 7518), (3969, 7160), (4296, 6615), (4410, 6444), (4536, 6265), (4833, 5880), (5012, 5670), (5292, 5370)]