20396190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:313

約数の個数: 64

約数和(自身を含む): 50916096

約数和(自身を除く): 30519906

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 97, 129, 163, 194, 215, 258, 291, 326, 430, 485, 489, 582, 645, 815, 970, 978, 1290, 1455, 1630, 2445, 2910, 4171, 4890, 7009, 8342, 12513, 14018, 15811, 20855, 21027, 25026, 31622, 35045, 41710, 42054, 47433, 62565, 70090, 79055, 94866, 105135, 125130, 158110, 210270, 237165, 474330, 679873, 1359746, 2039619, 3399365, 4079238, 6798730, 10198095, 20396190]

約数ペア:

[(1, 20396190), (2, 10198095), (3, 6798730), (5, 4079238), (6, 3399365), (10, 2039619), (15, 1359746), (30, 679873), (43, 474330), (86, 237165), (97, 210270), (129, 158110), (163, 125130), (194, 105135), (215, 94866), (258, 79055), (291, 70090), (326, 62565), (430, 47433), (485, 42054), (489, 41710), (582, 35045), (645, 31622), (815, 25026), (970, 21027), (978, 20855), (1290, 15811), (1455, 14018), (1630, 12513), (2445, 8342), (2910, 7009), (4171, 4890)]