28429940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18461}}^1$

素因数の和:18488

約数の個数: 48

約数和(自身を含む): 74438784

約数和(自身を除く): 46008844

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 18461, 36922, 73844, 92305, 129227, 184610, 203071, 258454, 369220, 406142, 516908, 646135, 812284, 1015355, 1292270, 1421497, 2030710, 2584540, 2842994, 4061420, 5685988, 7107485, 14214970, 28429940]

約数ペア:

[(1, 28429940), (2, 14214970), (4, 7107485), (5, 5685988), (7, 4061420), (10, 2842994), (11, 2584540), (14, 2030710), (20, 1421497), (22, 1292270), (28, 1015355), (35, 812284), (44, 646135), (55, 516908), (70, 406142), (77, 369220), (110, 258454), (140, 203071), (154, 184610), (220, 129227), (308, 92305), (385, 73844), (770, 36922), (1540, 18461)]