78956800

素因数分解:

$2^8\times 5^2\times {\mathrm{13}}^2\times {\mathrm{73}}^1$

素因数の和:125

約数の個数: 162

約数和(自身を含む): 214518822

約数和(自身を除く): 135562022

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 73, 80, 100, 104, 128, 130, 146, 160, 169, 200, 208, 256, 260, 292, 320, 325, 338, 365, 400, 416, 520, 584, 640, 650, 676, 730, 800, 832, 845, 949, 1040, 1168, 1280, 1300, 1352, 1460, 1600, 1664, 1690, 1825, 1898, 2080, 2336, 2600, 2704, 2920, 3200, 3328, 3380, 3650, 3796, 4160, 4225, 4672, 4745, 5200, 5408, 5840, 6400, 6760, 7300, 7592, 8320, 8450, 9344, 9490, 10400, 10816, 11680, 12337, 13520, 14600, 15184, 16640, 16900, 18688, 18980, 20800, 21632, 23360, 23725, 24674, 27040, 29200, 30368, 33800, 37960, 41600, 43264, 46720, 47450, 49348, 54080, 58400, 60736, 61685, 67600, 75920, 83200, 93440, 94900, 98696, 108160, 116800, 121472, 123370, 135200, 151840, 189800, 197392, 216320, 233600, 242944, 246740, 270400, 303680, 308425, 379600, 394784, 467200, 493480, 540800, 607360, 616850, 759200, 789568, 986960, 1081600, 1214720, 1233700, 1518400, 1579136, 1973920, 2467400, 3036800, 3158272, 3947840, 4934800, 6073600, 7895680, 9869600, 15791360, 19739200, 39478400, 78956800]

約数ペア:

[(1, 78956800), (2, 39478400), (4, 19739200), (5, 15791360), (8, 9869600), (10, 7895680), (13, 6073600), (16, 4934800), (20, 3947840), (25, 3158272), (26, 3036800), (32, 2467400), (40, 1973920), (50, 1579136), (52, 1518400), (64, 1233700), (65, 1214720), (73, 1081600), (80, 986960), (100, 789568), (104, 759200), (128, 616850), (130, 607360), (146, 540800), (160, 493480), (169, 467200), (200, 394784), (208, 379600), (256, 308425), (260, 303680), (292, 270400), (320, 246740), (325, 242944), (338, 233600), (365, 216320), (400, 197392), (416, 189800), (520, 151840), (584, 135200), (640, 123370), (650, 121472), (676, 116800), (730, 108160), (800, 98696), (832, 94900), (845, 93440), (949, 83200), (1040, 75920), (1168, 67600), (1280, 61685), (1300, 60736), (1352, 58400), (1460, 54080), (1600, 49348), (1664, 47450), (1690, 46720), (1825, 43264), (1898, 41600), (2080, 37960), (2336, 33800), (2600, 30368), (2704, 29200), (2920, 27040), (3200, 24674), (3328, 23725), (3380, 23360), (3650, 21632), (3796, 20800), (4160, 18980), (4225, 18688), (4672, 16900), (4745, 16640), (5200, 15184), (5408, 14600), (5840, 13520), (6400, 12337), (6760, 11680), (7300, 10816), (7592, 10400), (8320, 9490), (8450, 9344)]