About the Number

128742800

128742799 ← → 128742801

2進数表記:111101011000111010110010000

漢数字表記:一億二千八百七十四万二千八百

素因数分解:

2 4 × 5 2 × 73 1 × 4409 1

素因数の和:4500
約数の個数: 60
約数和(自身を含む): 313612740
約数和(自身を除く): 184869940

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 73, 80, 100, 146, 200, 292, 365, 400, 584, 730, 1168, 1460, 1825, 2920, 3650, 4409, 5840, 7300, 8818, 14600, 17636, 22045, 29200, 35272, 44090, 70544, 88180, 110225, 176360, 220450, 321857, 352720, 440900, 643714, 881800, 1287428, 1609285, 1763600, 2574856, 3218570, 5149712, 6437140, 8046425, 12874280, 16092850, 25748560, 32185700, 64371400, 128742800]

約数ペア:
[(1, 128742800), (2, 64371400), (4, 32185700), (5, 25748560), (8, 16092850), (10, 12874280), (16, 8046425), (20, 6437140), (25, 5149712), (40, 3218570), (50, 2574856), (73, 1763600), (80, 1609285), (100, 1287428), (146, 881800), (200, 643714), (292, 440900), (365, 352720), (400, 321857), (584, 220450), (730, 176360), (1168, 110225), (1460, 88180), (1825, 70544), (2920, 44090), (3650, 35272), (4409, 29200), (5840, 22045), (7300, 17636), (8818, 14600)]

このpageの処理時間: 0.015221834182739258 seconds