128857960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:176

約数の個数: 256

約数和(自身を含む): 403107840

約数和(自身を除く): 274249880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 17, 20, 22, 23, 28, 34, 35, 40, 44, 46, 55, 56, 68, 70, 77, 85, 88, 92, 107, 110, 115, 119, 136, 140, 154, 161, 170, 184, 187, 214, 220, 230, 238, 253, 280, 308, 322, 340, 374, 385, 391, 428, 440, 460, 476, 506, 535, 595, 616, 644, 680, 748, 749, 770, 782, 805, 856, 920, 935, 952, 1012, 1070, 1177, 1190, 1265, 1288, 1309, 1496, 1498, 1540, 1564, 1610, 1771, 1819, 1870, 1955, 2024, 2140, 2354, 2380, 2461, 2530, 2618, 2737, 2996, 3080, 3128, 3220, 3542, 3638, 3740, 3745, 3910, 4280, 4301, 4708, 4760, 4922, 5060, 5236, 5474, 5885, 5992, 6440, 6545, 7084, 7276, 7480, 7490, 7820, 8239, 8602, 8855, 9095, 9416, 9844, 10120, 10472, 10948, 11770, 12305, 12733, 13090, 13685, 14168, 14552, 14980, 15640, 16478, 17204, 17227, 17710, 18190, 19688, 20009, 21505, 21896, 23540, 24610, 25466, 26180, 27071, 27370, 29960, 30107, 32956, 34408, 34454, 35420, 36380, 40018, 41195, 41837, 43010, 47080, 49220, 50932, 52360, 54142, 54740, 60214, 63665, 65912, 68908, 70840, 72760, 80036, 82390, 83674, 86020, 86135, 98440, 100045, 101864, 108284, 109480, 120428, 127330, 135355, 137816, 140063, 150535, 160072, 164780, 167348, 172040, 172270, 189497, 200090, 209185, 216568, 240856, 254660, 270710, 280126, 292859, 301070, 329560, 334696, 344540, 378994, 400180, 418370, 460207, 509320, 541420, 560252, 585718, 602140, 689080, 700315, 757988, 800360, 836740, 920414, 947485, 1082840, 1120504, 1171436, 1204280, 1400630, 1464295, 1515976, 1673480, 1840828, 1894970, 2301035, 2342872, 2801260, 2928590, 3221449, 3681656, 3789940, 4602070, 5602520, 5857180, 6442898, 7579880, 9204140, 11714360, 12885796, 16107245, 18408280, 25771592, 32214490, 64428980, 128857960]

約数ペア:

[(1, 128857960), (2, 64428980), (4, 32214490), (5, 25771592), (7, 18408280), (8, 16107245), (10, 12885796), (11, 11714360), (14, 9204140), (17, 7579880), (20, 6442898), (22, 5857180), (23, 5602520), (28, 4602070), (34, 3789940), (35, 3681656), (40, 3221449), (44, 2928590), (46, 2801260), (55, 2342872), (56, 2301035), (68, 1894970), (70, 1840828), (77, 1673480), (85, 1515976), (88, 1464295), (92, 1400630), (107, 1204280), (110, 1171436), (115, 1120504), (119, 1082840), (136, 947485), (140, 920414), (154, 836740), (161, 800360), (170, 757988), (184, 700315), (187, 689080), (214, 602140), (220, 585718), (230, 560252), (238, 541420), (253, 509320), (280, 460207), (308, 418370), (322, 400180), (340, 378994), (374, 344540), (385, 334696), (391, 329560), (428, 301070), (440, 292859), (460, 280126), (476, 270710), (506, 254660), (535, 240856), (595, 216568), (616, 209185), (644, 200090), (680, 189497), (748, 172270), (749, 172040), (770, 167348), (782, 164780), (805, 160072), (856, 150535), (920, 140063), (935, 137816), (952, 135355), (1012, 127330), (1070, 120428), (1177, 109480), (1190, 108284), (1265, 101864), (1288, 100045), (1309, 98440), (1496, 86135), (1498, 86020), (1540, 83674), (1564, 82390), (1610, 80036), (1771, 72760), (1819, 70840), (1870, 68908), (1955, 65912), (2024, 63665), (2140, 60214), (2354, 54740), (2380, 54142), (2461, 52360), (2530, 50932), (2618, 49220), (2737, 47080), (2996, 43010), (3080, 41837), (3128, 41195), (3220, 40018), (3542, 36380), (3638, 35420), (3740, 34454), (3745, 34408), (3910, 32956), (4280, 30107), (4301, 29960), (4708, 27370), (4760, 27071), (4922, 26180), (5060, 25466), (5236, 24610), (5474, 23540), (5885, 21896), (5992, 21505), (6440, 20009), (6545, 19688), (7084, 18190), (7276, 17710), (7480, 17227), (7490, 17204), (7820, 16478), (8239, 15640), (8602, 14980), (8855, 14552), (9095, 14168), (9416, 13685), (9844, 13090), (10120, 12733), (10472, 12305), (10948, 11770)]