20166484

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 40360320

約数和(自身を除く): 20193836

約数列:

[1, 2, 4, 13, 26, 29, 43, 52, 58, 86, 116, 172, 311, 377, 559, 622, 754, 1118, 1244, 1247, 1508, 2236, 2494, 4043, 4988, 8086, 9019, 13373, 16172, 16211, 18038, 26746, 32422, 36076, 53492, 64844, 117247, 173849, 234494, 347698, 387817, 468988, 695396, 775634, 1551268, 5041621, 10083242, 20166484]

約数ペア:

[(1, 20166484), (2, 10083242), (4, 5041621), (13, 1551268), (26, 775634), (29, 695396), (43, 468988), (52, 387817), (58, 347698), (86, 234494), (116, 173849), (172, 117247), (311, 64844), (377, 53492), (559, 36076), (622, 32422), (754, 26746), (1118, 18038), (1244, 16211), (1247, 16172), (1508, 13373), (2236, 9019), (2494, 8086), (4043, 4988)]