20189020930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{989173}}^1$

素因数の和:989350

約数の個数: 32

約数和(自身を含む): 39384951984

約数和(自身を除く): 19195931054

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157, 314, 785, 1570, 2041, 4082, 10205, 20410, 989173, 1978346, 4945865, 9891730, 12859249, 25718498, 64296245, 128592490, 155300161, 310600322, 776500805, 1553001610, 2018902093, 4037804186, 10094510465, 20189020930]

約数ペア:

[(1, 20189020930), (2, 10094510465), (5, 4037804186), (10, 2018902093), (13, 1553001610), (26, 776500805), (65, 310600322), (130, 155300161), (157, 128592490), (314, 64296245), (785, 25718498), (1570, 12859249), (2041, 9891730), (4082, 4945865), (10205, 1978346), (20410, 989173)]