389470860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:428

約数の個数: 144

約数和(自身を含む): 1210809600

約数和(自身を除く): 821338740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 83, 90, 131, 166, 180, 199, 249, 262, 332, 393, 398, 415, 498, 524, 597, 655, 747, 786, 796, 830, 995, 996, 1179, 1194, 1245, 1310, 1494, 1572, 1660, 1791, 1965, 1990, 2358, 2388, 2490, 2620, 2985, 2988, 3582, 3735, 3930, 3980, 4716, 4980, 5895, 5970, 7164, 7470, 7860, 8955, 10873, 11790, 11940, 14940, 16517, 17910, 21746, 23580, 26069, 32619, 33034, 35820, 43492, 49551, 52138, 54365, 65238, 66068, 78207, 82585, 97857, 99102, 104276, 108730, 130345, 130476, 148653, 156414, 163095, 165170, 195714, 198204, 217460, 234621, 247755, 260690, 297306, 312828, 326190, 330340, 391035, 391428, 469242, 489285, 495510, 521380, 594612, 652380, 743265, 782070, 938484, 978570, 991020, 1173105, 1486530, 1564140, 1957140, 2163727, 2346210, 2973060, 4327454, 4692420, 6491181, 8654908, 10818635, 12982362, 19473543, 21637270, 25964724, 32455905, 38947086, 43274540, 64911810, 77894172, 97367715, 129823620, 194735430, 389470860]

約数ペア:

[(1, 389470860), (2, 194735430), (3, 129823620), (4, 97367715), (5, 77894172), (6, 64911810), (9, 43274540), (10, 38947086), (12, 32455905), (15, 25964724), (18, 21637270), (20, 19473543), (30, 12982362), (36, 10818635), (45, 8654908), (60, 6491181), (83, 4692420), (90, 4327454), (131, 2973060), (166, 2346210), (180, 2163727), (199, 1957140), (249, 1564140), (262, 1486530), (332, 1173105), (393, 991020), (398, 978570), (415, 938484), (498, 782070), (524, 743265), (597, 652380), (655, 594612), (747, 521380), (786, 495510), (796, 489285), (830, 469242), (995, 391428), (996, 391035), (1179, 330340), (1194, 326190), (1245, 312828), (1310, 297306), (1494, 260690), (1572, 247755), (1660, 234621), (1791, 217460), (1965, 198204), (1990, 195714), (2358, 165170), (2388, 163095), (2490, 156414), (2620, 148653), (2985, 130476), (2988, 130345), (3582, 108730), (3735, 104276), (3930, 99102), (3980, 97857), (4716, 82585), (4980, 78207), (5895, 66068), (5970, 65238), (7164, 54365), (7470, 52138), (7860, 49551), (8955, 43492), (10873, 35820), (11790, 33034), (11940, 32619), (14940, 26069), (16517, 23580), (17910, 21746)]