20438910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:274

約数の個数: 96

約数和(自身を含む): 56609280

約数和(自身を除く): 36170370

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 41, 45, 58, 82, 87, 90, 123, 145, 174, 191, 205, 246, 261, 290, 369, 382, 410, 435, 522, 573, 615, 738, 870, 955, 1146, 1189, 1230, 1305, 1719, 1845, 1910, 2378, 2610, 2865, 3438, 3567, 3690, 5539, 5730, 5945, 7134, 7831, 8595, 10701, 11078, 11890, 15662, 16617, 17190, 17835, 21402, 23493, 27695, 33234, 35670, 39155, 46986, 49851, 53505, 55390, 70479, 78310, 83085, 99702, 107010, 117465, 140958, 166170, 227099, 234930, 249255, 352395, 454198, 498510, 681297, 704790, 1135495, 1362594, 2043891, 2270990, 3406485, 4087782, 6812970, 10219455, 20438910]

約数ペア:

[(1, 20438910), (2, 10219455), (3, 6812970), (5, 4087782), (6, 3406485), (9, 2270990), (10, 2043891), (15, 1362594), (18, 1135495), (29, 704790), (30, 681297), (41, 498510), (45, 454198), (58, 352395), (82, 249255), (87, 234930), (90, 227099), (123, 166170), (145, 140958), (174, 117465), (191, 107010), (205, 99702), (246, 83085), (261, 78310), (290, 70479), (369, 55390), (382, 53505), (410, 49851), (435, 46986), (522, 39155), (573, 35670), (615, 33234), (738, 27695), (870, 23493), (955, 21402), (1146, 17835), (1189, 17190), (1230, 16617), (1305, 15662), (1719, 11890), (1845, 11078), (1910, 10701), (2378, 8595), (2610, 7831), (2865, 7134), (3438, 5945), (3567, 5730), (3690, 5539)]