281051680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:331

約数の個数: 192

約数和(自身を含む): 829785600

約数和(自身を除く): 548733920

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 97, 104, 112, 130, 140, 160, 182, 194, 199, 208, 224, 260, 280, 364, 388, 398, 416, 455, 485, 520, 560, 679, 728, 776, 796, 910, 970, 995, 1040, 1120, 1261, 1358, 1393, 1456, 1552, 1592, 1820, 1940, 1990, 2080, 2522, 2587, 2716, 2786, 2912, 3104, 3184, 3395, 3640, 3880, 3980, 5044, 5174, 5432, 5572, 6305, 6368, 6790, 6965, 7280, 7760, 7960, 8827, 10088, 10348, 10864, 11144, 12610, 12935, 13580, 13930, 14560, 15520, 15920, 17654, 18109, 19303, 20176, 20696, 21728, 22288, 25220, 25870, 27160, 27860, 31840, 35308, 36218, 38606, 40352, 41392, 44135, 44576, 50440, 51740, 54320, 55720, 70616, 72436, 77212, 82784, 88270, 90545, 96515, 100880, 103480, 108640, 111440, 135121, 141232, 144872, 154424, 176540, 181090, 193030, 201760, 206960, 222880, 250939, 270242, 282464, 289744, 308848, 353080, 362180, 386060, 413920, 501878, 540484, 579488, 617696, 675605, 706160, 724360, 772120, 1003756, 1080968, 1254695, 1351210, 1412320, 1448720, 1544240, 1756573, 2007512, 2161936, 2509390, 2702420, 2897440, 3088480, 3513146, 4015024, 4323872, 5018780, 5404840, 7026292, 8030048, 8782865, 10037560, 10809680, 14052584, 17565730, 20075120, 21619360, 28105168, 35131460, 40150240, 56210336, 70262920, 140525840, 281051680]

約数ペア:

[(1, 281051680), (2, 140525840), (4, 70262920), (5, 56210336), (7, 40150240), (8, 35131460), (10, 28105168), (13, 21619360), (14, 20075120), (16, 17565730), (20, 14052584), (26, 10809680), (28, 10037560), (32, 8782865), (35, 8030048), (40, 7026292), (52, 5404840), (56, 5018780), (65, 4323872), (70, 4015024), (80, 3513146), (91, 3088480), (97, 2897440), (104, 2702420), (112, 2509390), (130, 2161936), (140, 2007512), (160, 1756573), (182, 1544240), (194, 1448720), (199, 1412320), (208, 1351210), (224, 1254695), (260, 1080968), (280, 1003756), (364, 772120), (388, 724360), (398, 706160), (416, 675605), (455, 617696), (485, 579488), (520, 540484), (560, 501878), (679, 413920), (728, 386060), (776, 362180), (796, 353080), (910, 308848), (970, 289744), (995, 282464), (1040, 270242), (1120, 250939), (1261, 222880), (1358, 206960), (1393, 201760), (1456, 193030), (1552, 181090), (1592, 176540), (1820, 154424), (1940, 144872), (1990, 141232), (2080, 135121), (2522, 111440), (2587, 108640), (2716, 103480), (2786, 100880), (2912, 96515), (3104, 90545), (3184, 88270), (3395, 82784), (3640, 77212), (3880, 72436), (3980, 70616), (5044, 55720), (5174, 54320), (5432, 51740), (5572, 50440), (6305, 44576), (6368, 44135), (6790, 41392), (6965, 40352), (7280, 38606), (7760, 36218), (7960, 35308), (8827, 31840), (10088, 27860), (10348, 27160), (10864, 25870), (11144, 25220), (12610, 22288), (12935, 21728), (13580, 20696), (13930, 20176), (14560, 19303), (15520, 18109), (15920, 17654)]