20172279632

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{236143}}^1$

素因数の和:236451

約数の個数: 40

約数和(自身を含む): 41287416960

約数和(自身を除く): 21115137328

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 281, 304, 562, 1124, 2248, 4496, 5339, 10678, 21356, 42712, 85424, 236143, 472286, 944572, 1889144, 3778288, 4486717, 8973434, 17946868, 35893736, 66356183, 71787472, 132712366, 265424732, 530849464, 1061698928, 1260767477, 2521534954, 5043069908, 10086139816, 20172279632]

約数ペア:

[(1, 20172279632), (2, 10086139816), (4, 5043069908), (8, 2521534954), (16, 1260767477), (19, 1061698928), (38, 530849464), (76, 265424732), (152, 132712366), (281, 71787472), (304, 66356183), (562, 35893736), (1124, 17946868), (2248, 8973434), (4496, 4486717), (5339, 3778288), (10678, 1889144), (21356, 944572), (42712, 472286), (85424, 236143)]