20565787568

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{761}}^1\times {\mathrm{88897}}^1$

素因数の和:89685

約数の個数: 40

約数和(自身を含む): 41998971120

約数和(自身を除く): 21433183552

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 761, 1522, 3044, 6088, 12176, 14459, 28918, 57836, 88897, 115672, 177794, 231344, 355588, 711176, 1422352, 1689043, 3378086, 6756172, 13512344, 27024688, 67650617, 135301234, 270602468, 541204936, 1082409872, 1285361723, 2570723446, 5141446892, 10282893784, 20565787568]

約数ペア:

[(1, 20565787568), (2, 10282893784), (4, 5141446892), (8, 2570723446), (16, 1285361723), (19, 1082409872), (38, 541204936), (76, 270602468), (152, 135301234), (304, 67650617), (761, 27024688), (1522, 13512344), (3044, 6756172), (6088, 3378086), (12176, 1689043), (14459, 1422352), (28918, 711176), (57836, 355588), (88897, 231344), (115672, 177794)]