19885570

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2789}}^1$

素因数の和:2850

約数の個数: 32

約数和(自身を含む): 38568960

約数和(自身を除く): 18683390

約数列:

[1, 2, 5, 10, 23, 31, 46, 62, 115, 155, 230, 310, 713, 1426, 2789, 3565, 5578, 7130, 13945, 27890, 64147, 86459, 128294, 172918, 320735, 432295, 641470, 864590, 1988557, 3977114, 9942785, 19885570]

約数ペア:

[(1, 19885570), (2, 9942785), (5, 3977114), (10, 1988557), (23, 864590), (31, 641470), (46, 432295), (62, 320735), (115, 172918), (155, 128294), (230, 86459), (310, 64147), (713, 27890), (1426, 13945), (2789, 7130), (3565, 5578)]