281015280

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4289}}^1$

素因数の和:4328

約数の個数: 240

約数和(自身を含む): 1161800640

約数和(自身を除く): 880785360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 48, 52, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 104, 105, 112, 117, 120, 126, 130, 140, 144, 156, 168, 180, 182, 195, 208, 210, 234, 240, 252, 260, 273, 280, 312, 315, 336, 360, 364, 390, 420, 455, 468, 504, 520, 546, 560, 585, 624, 630, 720, 728, 780, 819, 840, 910, 936, 1008, 1040, 1092, 1170, 1260, 1365, 1456, 1560, 1638, 1680, 1820, 1872, 2184, 2340, 2520, 2730, 3120, 3276, 3640, 4095, 4289, 4368, 4680, 5040, 5460, 6552, 7280, 8190, 8578, 9360, 10920, 12867, 13104, 16380, 17156, 21445, 21840, 25734, 30023, 32760, 34312, 38601, 42890, 51468, 55757, 60046, 64335, 65520, 68624, 77202, 85780, 90069, 102936, 111514, 120092, 128670, 150115, 154404, 167271, 171560, 180138, 193005, 205872, 223028, 240184, 257340, 270207, 278785, 300230, 308808, 334542, 343120, 360276, 386010, 390299, 446056, 450345, 480368, 501813, 514680, 540414, 557570, 600460, 617616, 669084, 720552, 772020, 780598, 836355, 892112, 900690, 1003626, 1029360, 1080828, 1115140, 1170897, 1200920, 1338168, 1351035, 1441104, 1544040, 1561196, 1672710, 1801380, 1951495, 2007252, 2161656, 2230280, 2341794, 2401840, 2509065, 2676336, 2702070, 3088080, 3122392, 3345420, 3512691, 3602760, 3902990, 4014504, 4323312, 4460560, 4683588, 5018130, 5404140, 5854485, 6244784, 6690840, 7025382, 7205520, 7805980, 8029008, 9367176, 10036260, 10808280, 11708970, 13381680, 14050764, 15611960, 17563455, 18734352, 20072520, 21616560, 23417940, 28101528, 31223920, 35126910, 40145040, 46835880, 56203056, 70253820, 93671760, 140507640, 281015280]

約数ペア:

[(1, 281015280), (2, 140507640), (3, 93671760), (4, 70253820), (5, 56203056), (6, 46835880), (7, 40145040), (8, 35126910), (9, 31223920), (10, 28101528), (12, 23417940), (13, 21616560), (14, 20072520), (15, 18734352), (16, 17563455), (18, 15611960), (20, 14050764), (21, 13381680), (24, 11708970), (26, 10808280), (28, 10036260), (30, 9367176), (35, 8029008), (36, 7805980), (39, 7205520), (40, 7025382), (42, 6690840), (45, 6244784), (48, 5854485), (52, 5404140), (56, 5018130), (60, 4683588), (63, 4460560), (65, 4323312), (70, 4014504), (72, 3902990), (78, 3602760), (80, 3512691), (84, 3345420), (90, 3122392), (91, 3088080), (104, 2702070), (105, 2676336), (112, 2509065), (117, 2401840), (120, 2341794), (126, 2230280), (130, 2161656), (140, 2007252), (144, 1951495), (156, 1801380), (168, 1672710), (180, 1561196), (182, 1544040), (195, 1441104), (208, 1351035), (210, 1338168), (234, 1200920), (240, 1170897), (252, 1115140), (260, 1080828), (273, 1029360), (280, 1003626), (312, 900690), (315, 892112), (336, 836355), (360, 780598), (364, 772020), (390, 720552), (420, 669084), (455, 617616), (468, 600460), (504, 557570), (520, 540414), (546, 514680), (560, 501813), (585, 480368), (624, 450345), (630, 446056), (720, 390299), (728, 386010), (780, 360276), (819, 343120), (840, 334542), (910, 308808), (936, 300230), (1008, 278785), (1040, 270207), (1092, 257340), (1170, 240184), (1260, 223028), (1365, 205872), (1456, 193005), (1560, 180138), (1638, 171560), (1680, 167271), (1820, 154404), (1872, 150115), (2184, 128670), (2340, 120092), (2520, 111514), (2730, 102936), (3120, 90069), (3276, 85780), (3640, 77202), (4095, 68624), (4289, 65520), (4368, 64335), (4680, 60046), (5040, 55757), (5460, 51468), (6552, 42890), (7280, 38601), (8190, 34312), (8578, 32760), (9360, 30023), (10920, 25734), (12867, 21840), (13104, 21445), (16380, 17156)]