198564840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{551569}}^1$

素因数の和:551586

約数の個数: 48

約数和(自身を含む): 645336900

約数和(自身を除く): 446772060

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 551569, 1103138, 1654707, 2206276, 2757845, 3309414, 4412552, 4964121, 5515690, 6618828, 8273535, 9928242, 11031380, 13237656, 16547070, 19856484, 22062760, 24820605, 33094140, 39712968, 49641210, 66188280, 99282420, 198564840]

約数ペア:

[(1, 198564840), (2, 99282420), (3, 66188280), (4, 49641210), (5, 39712968), (6, 33094140), (8, 24820605), (9, 22062760), (10, 19856484), (12, 16547070), (15, 13237656), (18, 11031380), (20, 9928242), (24, 8273535), (30, 6618828), (36, 5515690), (40, 4964121), (45, 4412552), (60, 3309414), (72, 2757845), (90, 2206276), (120, 1654707), (180, 1103138), (360, 551569)]