199901284

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{439}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 390297600

約数和(自身を除く): 190396316

約数列:

[1, 2, 4, 11, 22, 44, 79, 131, 158, 262, 316, 439, 524, 869, 878, 1441, 1738, 1756, 2882, 3476, 4829, 5764, 9658, 10349, 19316, 20698, 34681, 41396, 57509, 69362, 113839, 115018, 138724, 227678, 230036, 381491, 455356, 632599, 762982, 1265198, 1525964, 2530396, 4543211, 9086422, 18172844, 49975321, 99950642, 199901284]

約数ペア:

[(1, 199901284), (2, 99950642), (4, 49975321), (11, 18172844), (22, 9086422), (44, 4543211), (79, 2530396), (131, 1525964), (158, 1265198), (262, 762982), (316, 632599), (439, 455356), (524, 381491), (869, 230036), (878, 227678), (1441, 138724), (1738, 115018), (1756, 113839), (2882, 69362), (3476, 57509), (4829, 41396), (5764, 34681), (9658, 20698), (10349, 19316)]