90146140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20771}}^1$

素因数の和:20818

約数の個数: 48

約数和(自身を含む): 223340544

約数和(自身を除く): 133194404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 20771, 41542, 83084, 103855, 145397, 207710, 290794, 415420, 581588, 643901, 726985, 1287802, 1453970, 2575604, 2907940, 3219505, 4507307, 6439010, 9014614, 12878020, 18029228, 22536535, 45073070, 90146140]

約数ペア:

[(1, 90146140), (2, 45073070), (4, 22536535), (5, 18029228), (7, 12878020), (10, 9014614), (14, 6439010), (20, 4507307), (28, 3219505), (31, 2907940), (35, 2575604), (62, 1453970), (70, 1287802), (124, 726985), (140, 643901), (155, 581588), (217, 415420), (310, 290794), (434, 207710), (620, 145397), (868, 103855), (1085, 83084), (2170, 41542), (4340, 20771)]