389655190

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{27773}}^1$

素因数の和:27864

約数の個数: 32

約数和(自身を含む): 743898816

約数和(自身を除く): 354243626

約数列:

[1, 2, 5, 10, 23, 46, 61, 115, 122, 230, 305, 610, 1403, 2806, 7015, 14030, 27773, 55546, 138865, 277730, 638779, 1277558, 1694153, 3193895, 3388306, 6387790, 8470765, 16941530, 38965519, 77931038, 194827595, 389655190]

約数ペア:

[(1, 389655190), (2, 194827595), (5, 77931038), (10, 38965519), (23, 16941530), (46, 8470765), (61, 6387790), (115, 3388306), (122, 3193895), (230, 1694153), (305, 1277558), (610, 638779), (1403, 277730), (2806, 138865), (7015, 55546), (14030, 27773)]