About the Number

12920640

12920639 ← → 12920641

2進数表記:110001010010011101000000

漢数字表記:千二百九十二万六百四十

素因数分解:

2 6 × 3 1 × 5 1 × 43 1 × 313 1

素因数の和:376
約数の個数: 112
約数和(自身を含む): 42111168
約数和(自身を除く): 29190528

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 64, 80, 86, 96, 120, 129, 160, 172, 192, 215, 240, 258, 313, 320, 344, 430, 480, 516, 626, 645, 688, 860, 939, 960, 1032, 1252, 1290, 1376, 1565, 1720, 1878, 2064, 2504, 2580, 2752, 3130, 3440, 3756, 4128, 4695, 5008, 5160, 6260, 6880, 7512, 8256, 9390, 10016, 10320, 12520, 13459, 13760, 15024, 18780, 20032, 20640, 25040, 26918, 30048, 37560, 40377, 41280, 50080, 53836, 60096, 67295, 75120, 80754, 100160, 107672, 134590, 150240, 161508, 201885, 215344, 269180, 300480, 323016, 403770, 430688, 538360, 646032, 807540, 861376, 1076720, 1292064, 1615080, 2153440, 2584128, 3230160, 4306880, 6460320, 12920640]

約数ペア:
[(1, 12920640), (2, 6460320), (3, 4306880), (4, 3230160), (5, 2584128), (6, 2153440), (8, 1615080), (10, 1292064), (12, 1076720), (15, 861376), (16, 807540), (20, 646032), (24, 538360), (30, 430688), (32, 403770), (40, 323016), (43, 300480), (48, 269180), (60, 215344), (64, 201885), (80, 161508), (86, 150240), (96, 134590), (120, 107672), (129, 100160), (160, 80754), (172, 75120), (192, 67295), (215, 60096), (240, 53836), (258, 50080), (313, 41280), (320, 40377), (344, 37560), (430, 30048), (480, 26918), (516, 25040), (626, 20640), (645, 20032), (688, 18780), (860, 15024), (939, 13760), (960, 13459), (1032, 12520), (1252, 10320), (1290, 10016), (1376, 9390), (1565, 8256), (1720, 7512), (1878, 6880), (2064, 6260), (2504, 5160), (2580, 5008), (2752, 4695), (3130, 4128), (3440, 3756)]

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