20147502940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{218947}}^1$

素因数の和:219106

約数の個数: 48

約数和(自身を含む): 43698517632

約数和(自身を除く): 23551014692

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 107, 172, 214, 215, 428, 430, 535, 860, 1070, 2140, 4601, 9202, 18404, 23005, 46010, 92020, 218947, 437894, 875788, 1094735, 2189470, 4378940, 9414721, 18829442, 23427329, 37658884, 46854658, 47073605, 93709316, 94147210, 117136645, 188294420, 234273290, 468546580, 1007375147, 2014750294, 4029500588, 5036875735, 10073751470, 20147502940]

約数ペア:

[(1, 20147502940), (2, 10073751470), (4, 5036875735), (5, 4029500588), (10, 2014750294), (20, 1007375147), (43, 468546580), (86, 234273290), (107, 188294420), (172, 117136645), (214, 94147210), (215, 93709316), (428, 47073605), (430, 46854658), (535, 37658884), (860, 23427329), (1070, 18829442), (2140, 9414721), (4601, 4378940), (9202, 2189470), (18404, 1094735), (23005, 875788), (46010, 437894), (92020, 218947)]