About the Number

401168640

401168639 ← → 401168641

2進数表記:10111111010010101100100000000

漢数字表記:四億百十六万八千六百四十

素因数分解:

2 8 × 3 1 × 5 1 × 104471 1

素因数の和:104495
約数の個数: 72
約数和(自身を含む): 1281244608
約数和(自身を除く): 880075968

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 104471, 208942, 313413, 417884, 522355, 626826, 835768, 1044710, 1253652, 1567065, 1671536, 2089420, 2507304, 3134130, 3343072, 4178840, 5014608, 6268260, 6686144, 8357680, 10029216, 12536520, 13372288, 16715360, 20058432, 25073040, 26744576, 33430720, 40116864, 50146080, 66861440, 80233728, 100292160, 133722880, 200584320, 401168640]

約数ペア:
[(1, 401168640), (2, 200584320), (3, 133722880), (4, 100292160), (5, 80233728), (6, 66861440), (8, 50146080), (10, 40116864), (12, 33430720), (15, 26744576), (16, 25073040), (20, 20058432), (24, 16715360), (30, 13372288), (32, 12536520), (40, 10029216), (48, 8357680), (60, 6686144), (64, 6268260), (80, 5014608), (96, 4178840), (120, 3343072), (128, 3134130), (160, 2507304), (192, 2089420), (240, 1671536), (256, 1567065), (320, 1253652), (384, 1044710), (480, 835768), (640, 626826), (768, 522355), (960, 417884), (1280, 313413), (1920, 208942), (3840, 104471)]

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