About the Number

642912240

642912239 ← → 642912241

2進数表記:100110010100100000111111110000

漢数字表記:六億四千二百九十一万二千二百四十

素因数分解:

2 4 × 3 1 × 5 1 × 233 1 × 11497 1

素因数の和:11746
約数の個数: 80
約数和(自身を含む): 2001755808
約数和(自身を除く): 1358843568

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 233, 240, 466, 699, 932, 1165, 1398, 1864, 2330, 2796, 3495, 3728, 4660, 5592, 6990, 9320, 11184, 11497, 13980, 18640, 22994, 27960, 34491, 45988, 55920, 57485, 68982, 91976, 114970, 137964, 172455, 183952, 229940, 275928, 344910, 459880, 551856, 689820, 919760, 1379640, 2678801, 2759280, 5357602, 8036403, 10715204, 13394005, 16072806, 21430408, 26788010, 32145612, 40182015, 42860816, 53576020, 64291224, 80364030, 107152040, 128582448, 160728060, 214304080, 321456120, 642912240]

約数ペア:
[(1, 642912240), (2, 321456120), (3, 214304080), (4, 160728060), (5, 128582448), (6, 107152040), (8, 80364030), (10, 64291224), (12, 53576020), (15, 42860816), (16, 40182015), (20, 32145612), (24, 26788010), (30, 21430408), (40, 16072806), (48, 13394005), (60, 10715204), (80, 8036403), (120, 5357602), (233, 2759280), (240, 2678801), (466, 1379640), (699, 919760), (932, 689820), (1165, 551856), (1398, 459880), (1864, 344910), (2330, 275928), (2796, 229940), (3495, 183952), (3728, 172455), (4660, 137964), (5592, 114970), (6990, 91976), (9320, 68982), (11184, 57485), (11497, 55920), (13980, 45988), (18640, 34491), (22994, 27960)]

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