18067420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 46964736

約数和(自身を除く): 28897316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 31, 35, 46, 62, 70, 92, 115, 124, 140, 155, 161, 181, 217, 230, 310, 322, 362, 434, 460, 620, 644, 713, 724, 805, 868, 905, 1085, 1267, 1426, 1610, 1810, 2170, 2534, 2852, 3220, 3565, 3620, 4163, 4340, 4991, 5068, 5611, 6335, 7130, 8326, 9982, 11222, 12670, 14260, 16652, 19964, 20815, 22444, 24955, 25340, 28055, 29141, 39277, 41630, 49910, 56110, 58282, 78554, 83260, 99820, 112220, 116564, 129053, 145705, 157108, 196385, 258106, 291410, 392770, 516212, 582820, 645265, 785540, 903371, 1290530, 1806742, 2581060, 3613484, 4516855, 9033710, 18067420]

約数ペア:

[(1, 18067420), (2, 9033710), (4, 4516855), (5, 3613484), (7, 2581060), (10, 1806742), (14, 1290530), (20, 903371), (23, 785540), (28, 645265), (31, 582820), (35, 516212), (46, 392770), (62, 291410), (70, 258106), (92, 196385), (115, 157108), (124, 145705), (140, 129053), (155, 116564), (161, 112220), (181, 99820), (217, 83260), (230, 78554), (310, 58282), (322, 56110), (362, 49910), (434, 41630), (460, 39277), (620, 29141), (644, 28055), (713, 25340), (724, 24955), (805, 22444), (868, 20815), (905, 19964), (1085, 16652), (1267, 14260), (1426, 12670), (1610, 11222), (1810, 9982), (2170, 8326), (2534, 7130), (2852, 6335), (3220, 5611), (3565, 5068), (3620, 4991), (4163, 4340)]