About the Number

1312478720

1312478719 ← → 1312478721

2進数表記:1001110001110101101011000000000

漢数字表記:十三億千二百四十七万八千七百二十

素因数分解:

2 9 × 5 1 × 7 2 × 10463 1

素因数の和:10500
約数の個数: 120
約数和(自身を含む): 3660997824
約数和(自身を除く): 2348519104

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 512, 560, 640, 784, 896, 980, 1120, 1280, 1568, 1792, 1960, 2240, 2560, 3136, 3584, 3920, 4480, 6272, 7840, 8960, 10463, 12544, 15680, 17920, 20926, 25088, 31360, 41852, 52315, 62720, 73241, 83704, 104630, 125440, 146482, 167408, 209260, 292964, 334816, 366205, 418520, 512687, 585928, 669632, 732410, 837040, 1025374, 1171856, 1339264, 1464820, 1674080, 2050748, 2343712, 2563435, 2678528, 2929640, 3348160, 4101496, 4687424, 5126870, 5357056, 5859280, 6696320, 8202992, 9374848, 10253740, 11718560, 13392640, 16405984, 18749696, 20507480, 23437120, 26785280, 32811968, 37499392, 41014960, 46874240, 65623936, 82029920, 93748480, 131247872, 164059840, 187496960, 262495744, 328119680, 656239360, 1312478720]

約数ペア:
[(1, 1312478720), (2, 656239360), (4, 328119680), (5, 262495744), (7, 187496960), (8, 164059840), (10, 131247872), (14, 93748480), (16, 82029920), (20, 65623936), (28, 46874240), (32, 41014960), (35, 37499392), (40, 32811968), (49, 26785280), (56, 23437120), (64, 20507480), (70, 18749696), (80, 16405984), (98, 13392640), (112, 11718560), (128, 10253740), (140, 9374848), (160, 8202992), (196, 6696320), (224, 5859280), (245, 5357056), (256, 5126870), (280, 4687424), (320, 4101496), (392, 3348160), (448, 2929640), (490, 2678528), (512, 2563435), (560, 2343712), (640, 2050748), (784, 1674080), (896, 1464820), (980, 1339264), (1120, 1171856), (1280, 1025374), (1568, 837040), (1792, 732410), (1960, 669632), (2240, 585928), (2560, 512687), (3136, 418520), (3584, 366205), (3920, 334816), (4480, 292964), (6272, 209260), (7840, 167408), (8960, 146482), (10463, 125440), (12544, 104630), (15680, 83704), (17920, 73241), (20926, 62720), (25088, 52315), (31360, 41852)]

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