30986620

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{4517}}^1$

素因数の和:4547

約数の個数: 48

約数和(自身を含む): 75902400

約数和(自身を除く): 44915780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 4517, 6860, 9034, 18068, 22585, 31619, 45170, 63238, 90340, 126476, 158095, 221333, 316190, 442666, 632380, 885332, 1106665, 1549331, 2213330, 3098662, 4426660, 6197324, 7746655, 15493310, 30986620]

約数ペア:

[(1, 30986620), (2, 15493310), (4, 7746655), (5, 6197324), (7, 4426660), (10, 3098662), (14, 2213330), (20, 1549331), (28, 1106665), (35, 885332), (49, 632380), (70, 442666), (98, 316190), (140, 221333), (196, 158095), (245, 126476), (343, 90340), (490, 63238), (686, 45170), (980, 31619), (1372, 22585), (1715, 18068), (3430, 9034), (4517, 6860)]