81847290

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{389749}}^1$

素因数の和:389766

約数の個数: 32

約数和(自身を含む): 224496000

約数和(自身を除く): 142648710

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 389749, 779498, 1169247, 1948745, 2338494, 2728243, 3897490, 5456486, 5846235, 8184729, 11692470, 13641215, 16369458, 27282430, 40923645, 81847290]

約数ペア:

[(1, 81847290), (2, 40923645), (3, 27282430), (5, 16369458), (6, 13641215), (7, 11692470), (10, 8184729), (14, 5846235), (15, 5456486), (21, 3897490), (30, 2728243), (35, 2338494), (42, 1948745), (70, 1169247), (105, 779498), (210, 389749)]