280688520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:492

約数の個数: 256

約数和(自身を含む): 1039104000

約数和(自身を除く): 758415480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 43, 56, 57, 60, 70, 76, 84, 86, 95, 105, 114, 120, 129, 133, 140, 152, 168, 172, 190, 210, 215, 228, 258, 266, 280, 285, 301, 344, 380, 399, 409, 420, 430, 456, 516, 532, 570, 602, 645, 665, 760, 798, 817, 818, 840, 860, 903, 1032, 1064, 1140, 1204, 1227, 1290, 1330, 1505, 1596, 1634, 1636, 1720, 1806, 1995, 2045, 2280, 2408, 2451, 2454, 2580, 2660, 2863, 3010, 3192, 3268, 3272, 3612, 3990, 4085, 4090, 4515, 4902, 4908, 5160, 5320, 5719, 5726, 6020, 6135, 6536, 7224, 7771, 7980, 8170, 8180, 8589, 9030, 9804, 9816, 11438, 11452, 12040, 12255, 12270, 14315, 15542, 15960, 16340, 16360, 17157, 17178, 17587, 18060, 19608, 22876, 22904, 23313, 24510, 24540, 28595, 28630, 31084, 32680, 34314, 34356, 35174, 36120, 38855, 42945, 45752, 46626, 49020, 49080, 52761, 54397, 57190, 57260, 62168, 68628, 68712, 70348, 77710, 85785, 85890, 87935, 93252, 98040, 105522, 108794, 114380, 114520, 116565, 123109, 137256, 140696, 155420, 163191, 171570, 171780, 175870, 186504, 211044, 217588, 228760, 233130, 246218, 263805, 271985, 310840, 326382, 334153, 343140, 343560, 351740, 369327, 422088, 435176, 466260, 492436, 527610, 543970, 615545, 652764, 668306, 686280, 703480, 738654, 815955, 932520, 984872, 1002459, 1055220, 1087940, 1231090, 1305528, 1336612, 1477308, 1631910, 1670765, 1846635, 2004918, 2110440, 2175880, 2339071, 2462180, 2673224, 2954616, 3263820, 3341530, 3693270, 4009836, 4678142, 4924360, 5012295, 6527640, 6683060, 7017213, 7386540, 8019672, 9356284, 10024590, 11695355, 13366120, 14034426, 14773080, 18712568, 20049180, 23390710, 28068852, 35086065, 40098360, 46781420, 56137704, 70172130, 93562840, 140344260, 280688520]

約数ペア:

[(1, 280688520), (2, 140344260), (3, 93562840), (4, 70172130), (5, 56137704), (6, 46781420), (7, 40098360), (8, 35086065), (10, 28068852), (12, 23390710), (14, 20049180), (15, 18712568), (19, 14773080), (20, 14034426), (21, 13366120), (24, 11695355), (28, 10024590), (30, 9356284), (35, 8019672), (38, 7386540), (40, 7017213), (42, 6683060), (43, 6527640), (56, 5012295), (57, 4924360), (60, 4678142), (70, 4009836), (76, 3693270), (84, 3341530), (86, 3263820), (95, 2954616), (105, 2673224), (114, 2462180), (120, 2339071), (129, 2175880), (133, 2110440), (140, 2004918), (152, 1846635), (168, 1670765), (172, 1631910), (190, 1477308), (210, 1336612), (215, 1305528), (228, 1231090), (258, 1087940), (266, 1055220), (280, 1002459), (285, 984872), (301, 932520), (344, 815955), (380, 738654), (399, 703480), (409, 686280), (420, 668306), (430, 652764), (456, 615545), (516, 543970), (532, 527610), (570, 492436), (602, 466260), (645, 435176), (665, 422088), (760, 369327), (798, 351740), (817, 343560), (818, 343140), (840, 334153), (860, 326382), (903, 310840), (1032, 271985), (1064, 263805), (1140, 246218), (1204, 233130), (1227, 228760), (1290, 217588), (1330, 211044), (1505, 186504), (1596, 175870), (1634, 171780), (1636, 171570), (1720, 163191), (1806, 155420), (1995, 140696), (2045, 137256), (2280, 123109), (2408, 116565), (2451, 114520), (2454, 114380), (2580, 108794), (2660, 105522), (2863, 98040), (3010, 93252), (3192, 87935), (3268, 85890), (3272, 85785), (3612, 77710), (3990, 70348), (4085, 68712), (4090, 68628), (4515, 62168), (4902, 57260), (4908, 57190), (5160, 54397), (5320, 52761), (5719, 49080), (5726, 49020), (6020, 46626), (6135, 45752), (6536, 42945), (7224, 38855), (7771, 36120), (7980, 35174), (8170, 34356), (8180, 34314), (8589, 32680), (9030, 31084), (9804, 28630), (9816, 28595), (11438, 24540), (11452, 24510), (12040, 23313), (12255, 22904), (12270, 22876), (14315, 19608), (15542, 18060), (15960, 17587), (16340, 17178), (16360, 17157)]