138738810

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{660661}}^1$

素因数の和:660678

約数の個数: 32

約数和(自身を含む): 380541312

約数和(自身を除く): 241802502

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 660661, 1321322, 1981983, 3303305, 3963966, 4624627, 6606610, 9249254, 9909915, 13873881, 19819830, 23123135, 27747762, 46246270, 69369405, 138738810]

約数ペア:

[(1, 138738810), (2, 69369405), (3, 46246270), (5, 27747762), (6, 23123135), (7, 19819830), (10, 13873881), (14, 9909915), (15, 9249254), (21, 6606610), (30, 4624627), (35, 3963966), (42, 3303305), (70, 1981983), (105, 1321322), (210, 660661)]