128467400

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:279

約数の個数: 96

約数和(自身を含む): 309355200

約数和(自身を除く): 180887800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 83, 100, 109, 142, 166, 200, 218, 284, 332, 355, 415, 436, 545, 568, 664, 710, 830, 872, 1090, 1420, 1660, 1775, 2075, 2180, 2725, 2840, 3320, 3550, 4150, 4360, 5450, 5893, 7100, 7739, 8300, 9047, 10900, 11786, 14200, 15478, 16600, 18094, 21800, 23572, 29465, 30956, 36188, 38695, 45235, 47144, 58930, 61912, 72376, 77390, 90470, 117860, 147325, 154780, 180940, 193475, 226175, 235720, 294650, 309560, 361880, 386950, 452350, 589300, 642337, 773900, 904700, 1178600, 1284674, 1547800, 1809400, 2569348, 3211685, 5138696, 6423370, 12846740, 16058425, 25693480, 32116850, 64233700, 128467400]

約数ペア:

[(1, 128467400), (2, 64233700), (4, 32116850), (5, 25693480), (8, 16058425), (10, 12846740), (20, 6423370), (25, 5138696), (40, 3211685), (50, 2569348), (71, 1809400), (83, 1547800), (100, 1284674), (109, 1178600), (142, 904700), (166, 773900), (200, 642337), (218, 589300), (284, 452350), (332, 386950), (355, 361880), (415, 309560), (436, 294650), (545, 235720), (568, 226175), (664, 193475), (710, 180940), (830, 154780), (872, 147325), (1090, 117860), (1420, 90470), (1660, 77390), (1775, 72376), (2075, 61912), (2180, 58930), (2725, 47144), (2840, 45235), (3320, 38695), (3550, 36188), (4150, 30956), (4360, 29465), (5450, 23572), (5893, 21800), (7100, 18094), (7739, 16600), (8300, 15478), (9047, 14200), (10900, 11786)]