About the Number

131446720

131446719 ← → 131446721

2進数表記:111110101011011011111000000

漢数字表記:一億三千百四十四万六千七百二十

素因数分解:

2 6 × 5 1 × 17 1 × 73 1 × 331 1

素因数の和:438
約数の個数: 112
約数和(自身を含む): 336974688
約数和(自身を除く): 205527968

約数列:
[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 73, 80, 85, 136, 146, 160, 170, 272, 292, 320, 331, 340, 365, 544, 584, 662, 680, 730, 1088, 1168, 1241, 1324, 1360, 1460, 1655, 2336, 2482, 2648, 2720, 2920, 3310, 4672, 4964, 5296, 5440, 5627, 5840, 6205, 6620, 9928, 10592, 11254, 11680, 12410, 13240, 19856, 21184, 22508, 23360, 24163, 24820, 26480, 28135, 39712, 45016, 48326, 49640, 52960, 56270, 79424, 90032, 96652, 99280, 105920, 112540, 120815, 180064, 193304, 198560, 225080, 241630, 360128, 386608, 397120, 410771, 450160, 483260, 773216, 821542, 900320, 966520, 1546432, 1643084, 1800640, 1933040, 2053855, 3286168, 3866080, 4107710, 6572336, 7732160, 8215420, 13144672, 16430840, 26289344, 32861680, 65723360, 131446720]

約数ペア:
[(1, 131446720), (2, 65723360), (4, 32861680), (5, 26289344), (8, 16430840), (10, 13144672), (16, 8215420), (17, 7732160), (20, 6572336), (32, 4107710), (34, 3866080), (40, 3286168), (64, 2053855), (68, 1933040), (73, 1800640), (80, 1643084), (85, 1546432), (136, 966520), (146, 900320), (160, 821542), (170, 773216), (272, 483260), (292, 450160), (320, 410771), (331, 397120), (340, 386608), (365, 360128), (544, 241630), (584, 225080), (662, 198560), (680, 193304), (730, 180064), (1088, 120815), (1168, 112540), (1241, 105920), (1324, 99280), (1360, 96652), (1460, 90032), (1655, 79424), (2336, 56270), (2482, 52960), (2648, 49640), (2720, 48326), (2920, 45016), (3310, 39712), (4672, 28135), (4964, 26480), (5296, 24820), (5440, 24163), (5627, 23360), (5840, 22508), (6205, 21184), (6620, 19856), (9928, 13240), (10592, 12410), (11254, 11680)]

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