19990742912

素因数分解:

$2^7\times 7^1\times {\mathrm{179}}^1\times {\mathrm{124643}}^1$

素因数の和:124843

約数の個数: 64

約数和(自身を含む): 45769276800

約数和(自身を除く): 25778533888

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 179, 224, 358, 448, 716, 896, 1253, 1432, 2506, 2864, 5012, 5728, 10024, 11456, 20048, 22912, 40096, 80192, 124643, 160384, 249286, 498572, 872501, 997144, 1745002, 1994288, 3490004, 3988576, 6980008, 7977152, 13960016, 15954304, 22311097, 27920032, 44622194, 55840064, 89244388, 111680128, 156177679, 178488776, 312355358, 356977552, 624710716, 713955104, 1249421432, 1427910208, 2498842864, 2855820416, 4997685728, 9995371456, 19990742912]

約数ペア:

[(1, 19990742912), (2, 9995371456), (4, 4997685728), (7, 2855820416), (8, 2498842864), (14, 1427910208), (16, 1249421432), (28, 713955104), (32, 624710716), (56, 356977552), (64, 312355358), (112, 178488776), (128, 156177679), (179, 111680128), (224, 89244388), (358, 55840064), (448, 44622194), (716, 27920032), (896, 22311097), (1253, 15954304), (1432, 13960016), (2506, 7977152), (2864, 6980008), (5012, 3988576), (5728, 3490004), (10024, 1994288), (11456, 1745002), (20048, 997144), (22912, 872501), (40096, 498572), (80192, 249286), (124643, 160384)]