256218480

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1753}}^1$

素因数の和:1808

約数の個数: 240

約数和(自身を含む): 1017881280

約数和(自身を除く): 761662800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 29, 30, 35, 36, 40, 42, 45, 48, 56, 58, 60, 63, 70, 72, 80, 84, 87, 90, 105, 112, 116, 120, 126, 140, 144, 145, 168, 174, 180, 203, 210, 232, 240, 252, 261, 280, 290, 315, 336, 348, 360, 406, 420, 435, 464, 504, 522, 560, 580, 609, 630, 696, 720, 812, 840, 870, 1008, 1015, 1044, 1160, 1218, 1260, 1305, 1392, 1624, 1680, 1740, 1753, 1827, 2030, 2088, 2320, 2436, 2520, 2610, 3045, 3248, 3480, 3506, 3654, 4060, 4176, 4872, 5040, 5220, 5259, 6090, 6960, 7012, 7308, 8120, 8765, 9135, 9744, 10440, 10518, 12180, 12271, 14024, 14616, 15777, 16240, 17530, 18270, 20880, 21036, 24360, 24542, 26295, 28048, 29232, 31554, 35060, 36540, 36813, 42072, 48720, 49084, 50837, 52590, 61355, 63108, 70120, 73080, 73626, 78885, 84144, 98168, 101674, 105180, 110439, 122710, 126216, 140240, 146160, 147252, 152511, 157770, 184065, 196336, 203348, 210360, 220878, 245420, 252432, 254185, 294504, 305022, 315540, 355859, 368130, 406696, 420720, 441756, 457533, 490840, 508370, 552195, 589008, 610044, 631080, 711718, 736260, 762555, 813392, 883512, 915066, 981680, 1016740, 1067577, 1104390, 1220088, 1262160, 1423436, 1472520, 1525110, 1767024, 1779295, 1830132, 2033480, 2135154, 2208780, 2287665, 2440176, 2846872, 2945040, 3050220, 3202731, 3558590, 3660264, 4066960, 4270308, 4417560, 4575330, 5337885, 5693744, 6100440, 6405462, 7117180, 7320528, 8540616, 8835120, 9150660, 10675770, 12200880, 12810924, 14234360, 16013655, 17081232, 18301320, 21351540, 25621848, 28468720, 32027310, 36602640, 42703080, 51243696, 64054620, 85406160, 128109240, 256218480]

約数ペア:

[(1, 256218480), (2, 128109240), (3, 85406160), (4, 64054620), (5, 51243696), (6, 42703080), (7, 36602640), (8, 32027310), (9, 28468720), (10, 25621848), (12, 21351540), (14, 18301320), (15, 17081232), (16, 16013655), (18, 14234360), (20, 12810924), (21, 12200880), (24, 10675770), (28, 9150660), (29, 8835120), (30, 8540616), (35, 7320528), (36, 7117180), (40, 6405462), (42, 6100440), (45, 5693744), (48, 5337885), (56, 4575330), (58, 4417560), (60, 4270308), (63, 4066960), (70, 3660264), (72, 3558590), (80, 3202731), (84, 3050220), (87, 2945040), (90, 2846872), (105, 2440176), (112, 2287665), (116, 2208780), (120, 2135154), (126, 2033480), (140, 1830132), (144, 1779295), (145, 1767024), (168, 1525110), (174, 1472520), (180, 1423436), (203, 1262160), (210, 1220088), (232, 1104390), (240, 1067577), (252, 1016740), (261, 981680), (280, 915066), (290, 883512), (315, 813392), (336, 762555), (348, 736260), (360, 711718), (406, 631080), (420, 610044), (435, 589008), (464, 552195), (504, 508370), (522, 490840), (560, 457533), (580, 441756), (609, 420720), (630, 406696), (696, 368130), (720, 355859), (812, 315540), (840, 305022), (870, 294504), (1008, 254185), (1015, 252432), (1044, 245420), (1160, 220878), (1218, 210360), (1260, 203348), (1305, 196336), (1392, 184065), (1624, 157770), (1680, 152511), (1740, 147252), (1753, 146160), (1827, 140240), (2030, 126216), (2088, 122710), (2320, 110439), (2436, 105180), (2520, 101674), (2610, 98168), (3045, 84144), (3248, 78885), (3480, 73626), (3506, 73080), (3654, 70120), (4060, 63108), (4176, 61355), (4872, 52590), (5040, 50837), (5220, 49084), (5259, 48720), (6090, 42072), (6960, 36813), (7012, 36540), (7308, 35060), (8120, 31554), (8765, 29232), (9135, 28048), (9744, 26295), (10440, 24542), (10518, 24360), (12180, 21036), (12271, 20880), (14024, 18270), (14616, 17530), (15777, 16240)]