689139760

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{2137}}^1$

素因数の和:2318

約数の個数: 80

約数和(自身を含む): 1670205600

約数和(自身を除く): 981065840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 139, 145, 232, 278, 290, 464, 556, 580, 695, 1112, 1160, 1390, 2137, 2224, 2320, 2780, 4031, 4274, 5560, 8062, 8548, 10685, 11120, 16124, 17096, 20155, 21370, 32248, 34192, 40310, 42740, 61973, 64496, 80620, 85480, 123946, 161240, 170960, 247892, 297043, 309865, 322480, 495784, 594086, 619730, 991568, 1188172, 1239460, 1485215, 2376344, 2478920, 2970430, 4752688, 4957840, 5940860, 8614247, 11881720, 17228494, 23763440, 34456988, 43071235, 68913976, 86142470, 137827952, 172284940, 344569880, 689139760]

約数ペア:

[(1, 689139760), (2, 344569880), (4, 172284940), (5, 137827952), (8, 86142470), (10, 68913976), (16, 43071235), (20, 34456988), (29, 23763440), (40, 17228494), (58, 11881720), (80, 8614247), (116, 5940860), (139, 4957840), (145, 4752688), (232, 2970430), (278, 2478920), (290, 2376344), (464, 1485215), (556, 1239460), (580, 1188172), (695, 991568), (1112, 619730), (1160, 594086), (1390, 495784), (2137, 322480), (2224, 309865), (2320, 297043), (2780, 247892), (4031, 170960), (4274, 161240), (5560, 123946), (8062, 85480), (8548, 80620), (10685, 64496), (11120, 61973), (16124, 42740), (17096, 40310), (20155, 34192), (21370, 32248)]