About the Number
19980180
2進数表記:1001100001101111110010100
漢数字表記:千九百九十八万百八十
素因数分解:
素因数の和:10117
約数の個数: 72
約数和(自身を含む): 66122784
約数和(自身を除く): 46142604
約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10091, 20182, 30273, 40364, 50455, 60546, 90819, 100910, 111001, 121092, 151365, 181638, 201820, 222002, 302730, 333003, 363276, 444004, 454095, 555005, 605460, 666006, 908190, 999009, 1110010, 1332012, 1665015, 1816380, 1998018, 2220020, 3330030, 3996036, 4995045, 6660060, 9990090, 19980180]
約数ペア:
[(1, 19980180), (2, 9990090), (3, 6660060), (4, 4995045), (5, 3996036), (6, 3330030), (9, 2220020), (10, 1998018), (11, 1816380), (12, 1665015), (15, 1332012), (18, 1110010), (20, 999009), (22, 908190), (30, 666006), (33, 605460), (36, 555005), (44, 454095), (45, 444004), (55, 363276), (60, 333003), (66, 302730), (90, 222002), (99, 201820), (110, 181638), (132, 151365), (165, 121092), (180, 111001), (198, 100910), (220, 90819), (330, 60546), (396, 50455), (495, 40364), (660, 30273), (990, 20182), (1980, 10091)]このpageの処理時間: 0.004157304763793945 seconds