640426272

素因数分解:

$2^5\times 3^1\times {\mathrm{31}}^1\times {\mathrm{215197}}^1$

素因数の和:215241

約数の個数: 48

約数和(自身を含む): 1735356672

約数和(自身を除く): 1094930400

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 48, 62, 93, 96, 124, 186, 248, 372, 496, 744, 992, 1488, 2976, 215197, 430394, 645591, 860788, 1291182, 1721576, 2582364, 3443152, 5164728, 6671107, 6886304, 10329456, 13342214, 20013321, 20658912, 26684428, 40026642, 53368856, 80053284, 106737712, 160106568, 213475424, 320213136, 640426272]

約数ペア:

[(1, 640426272), (2, 320213136), (3, 213475424), (4, 160106568), (6, 106737712), (8, 80053284), (12, 53368856), (16, 40026642), (24, 26684428), (31, 20658912), (32, 20013321), (48, 13342214), (62, 10329456), (93, 6886304), (96, 6671107), (124, 5164728), (186, 3443152), (248, 2582364), (372, 1721576), (496, 1291182), (744, 860788), (992, 645591), (1488, 430394), (2976, 215197)]