257335668

素因数分解:

$2^2\times 3^2\times {\mathrm{89}}^1\times {\mathrm{80317}}^1$

素因数の和:80416

約数の個数: 36

約数和(自身を含む): 657804420

約数和(自身を除く): 400468752

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 89, 178, 267, 356, 534, 801, 1068, 1602, 3204, 80317, 160634, 240951, 321268, 481902, 722853, 963804, 1445706, 2891412, 7148213, 14296426, 21444639, 28592852, 42889278, 64333917, 85778556, 128667834, 257335668]

約数ペア:

[(1, 257335668), (2, 128667834), (3, 85778556), (4, 64333917), (6, 42889278), (9, 28592852), (12, 21444639), (18, 14296426), (36, 7148213), (89, 2891412), (178, 1445706), (267, 963804), (356, 722853), (534, 481902), (801, 321268), (1068, 240951), (1602, 160634), (3204, 80317)]