7722780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9901}}^1$

素因数の和:9926

約数の個数: 48

約数和(自身を含む): 23289504

約数和(自身を除く): 15566724

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 9901, 19802, 29703, 39604, 49505, 59406, 99010, 118812, 128713, 148515, 198020, 257426, 297030, 386139, 514852, 594060, 643565, 772278, 1287130, 1544556, 1930695, 2574260, 3861390, 7722780]

約数ペア:

[(1, 7722780), (2, 3861390), (3, 2574260), (4, 1930695), (5, 1544556), (6, 1287130), (10, 772278), (12, 643565), (13, 594060), (15, 514852), (20, 386139), (26, 297030), (30, 257426), (39, 198020), (52, 148515), (60, 128713), (65, 118812), (78, 99010), (130, 59406), (156, 49505), (195, 39604), (260, 29703), (390, 19802), (780, 9901)]