20787688208

素因数分解:

$2^4\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1913447}}^1$

素因数の和:1913559

約数の個数: 40

約数和(自身を含む): 46504440192

約数和(自身を除く): 25716751984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 97, 112, 194, 388, 679, 776, 1358, 1552, 2716, 5432, 10864, 1913447, 3826894, 7653788, 13394129, 15307576, 26788258, 30615152, 53576516, 107153032, 185604359, 214306064, 371208718, 742417436, 1299230513, 1484834872, 2598461026, 2969669744, 5196922052, 10393844104, 20787688208]

約数ペア:

[(1, 20787688208), (2, 10393844104), (4, 5196922052), (7, 2969669744), (8, 2598461026), (14, 1484834872), (16, 1299230513), (28, 742417436), (56, 371208718), (97, 214306064), (112, 185604359), (194, 107153032), (388, 53576516), (679, 30615152), (776, 26788258), (1358, 15307576), (1552, 13394129), (2716, 7653788), (5432, 3826894), (10864, 1913447)]