1212151720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2331061}}^1$

素因数の和:2331085

約数の個数: 32

約数和(自身を含む): 2937138120

約数和(自身を除く): 1724986400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 2331061, 4662122, 9324244, 11655305, 18648488, 23310610, 30303793, 46621220, 60607586, 93242440, 121215172, 151518965, 242430344, 303037930, 606075860, 1212151720]

約数ペア:

[(1, 1212151720), (2, 606075860), (4, 303037930), (5, 242430344), (8, 151518965), (10, 121215172), (13, 93242440), (20, 60607586), (26, 46621220), (40, 30303793), (52, 23310610), (65, 18648488), (104, 11655305), (130, 9324244), (260, 4662122), (520, 2331061)]