20996870428

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{383}}^1\times {\mathrm{1789}}^1$

素因数の和:2386

約数の個数: 48

約数和(自身を含む): 37876285440

約数和(自身を除く): 16879415012

約数列:

[1, 2, 4, 47, 94, 163, 188, 326, 383, 652, 766, 1532, 1789, 3578, 7156, 7661, 15322, 18001, 30644, 36002, 62429, 72004, 84083, 124858, 168166, 249716, 291607, 336332, 583214, 685187, 1166428, 1370374, 2740748, 2934163, 5868326, 11736652, 13705529, 27411058, 32203789, 54822116, 64407578, 111685481, 128815156, 223370962, 446741924, 5249217607, 10498435214, 20996870428]

約数ペア:

[(1, 20996870428), (2, 10498435214), (4, 5249217607), (47, 446741924), (94, 223370962), (163, 128815156), (188, 111685481), (326, 64407578), (383, 54822116), (652, 32203789), (766, 27411058), (1532, 13705529), (1789, 11736652), (3578, 5868326), (7156, 2934163), (7661, 2740748), (15322, 1370374), (18001, 1166428), (30644, 685187), (36002, 583214), (62429, 336332), (72004, 291607), (84083, 249716), (124858, 168166)]