80556540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{78977}}^1$

素因数の和:79006

約数の個数: 48

約数和(自身を含む): 238829472

約数和(自身を除く): 158272932

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 78977, 157954, 236931, 315908, 394885, 473862, 789770, 947724, 1184655, 1342609, 1579540, 2369310, 2685218, 4027827, 4738620, 5370436, 6713045, 8055654, 13426090, 16111308, 20139135, 26852180, 40278270, 80556540]

約数ペア:

[(1, 80556540), (2, 40278270), (3, 26852180), (4, 20139135), (5, 16111308), (6, 13426090), (10, 8055654), (12, 6713045), (15, 5370436), (17, 4738620), (20, 4027827), (30, 2685218), (34, 2369310), (51, 1579540), (60, 1342609), (68, 1184655), (85, 947724), (102, 789770), (170, 473862), (204, 394885), (255, 315908), (340, 236931), (510, 157954), (1020, 78977)]