81162340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18701}}^1$

素因数の和:18748

約数の個数: 48

約数和(自身を含む): 201083904

約数和(自身を除く): 119921564

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, 18701, 37402, 74804, 93505, 130907, 187010, 261814, 374020, 523628, 579731, 654535, 1159462, 1309070, 2318924, 2618140, 2898655, 4058117, 5797310, 8116234, 11594620, 16232468, 20290585, 40581170, 81162340]

約数ペア:

[(1, 81162340), (2, 40581170), (4, 20290585), (5, 16232468), (7, 11594620), (10, 8116234), (14, 5797310), (20, 4058117), (28, 2898655), (31, 2618140), (35, 2318924), (62, 1309070), (70, 1159462), (124, 654535), (140, 579731), (155, 523628), (217, 374020), (310, 261814), (434, 187010), (620, 130907), (868, 93505), (1085, 74804), (2170, 37402), (4340, 18701)]