28371784

素因数分解:

$2^3\times 7^2\times {\mathrm{157}}^1\times {\mathrm{461}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 62411580

約数和(自身を除く): 34039796

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 157, 196, 314, 392, 461, 628, 922, 1099, 1256, 1844, 2198, 3227, 3688, 4396, 6454, 7693, 8792, 12908, 15386, 22589, 25816, 30772, 45178, 61544, 72377, 90356, 144754, 180712, 289508, 506639, 579016, 1013278, 2026556, 3546473, 4053112, 7092946, 14185892, 28371784]

約数ペア:

[(1, 28371784), (2, 14185892), (4, 7092946), (7, 4053112), (8, 3546473), (14, 2026556), (28, 1013278), (49, 579016), (56, 506639), (98, 289508), (157, 180712), (196, 144754), (314, 90356), (392, 72377), (461, 61544), (628, 45178), (922, 30772), (1099, 25816), (1256, 22589), (1844, 15386), (2198, 12908), (3227, 8792), (3688, 7693), (4396, 6454)]