39849880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4591}}^1$

素因数の和:4640

約数の個数: 64

約数和(自身を含む): 105799680

約数和(自身を除く): 65949800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 4591, 8680, 9182, 18364, 22955, 32137, 36728, 45910, 64274, 91820, 128548, 142321, 160685, 183640, 257096, 284642, 321370, 569284, 642740, 711605, 996247, 1138568, 1285480, 1423210, 1992494, 2846420, 3984988, 4981235, 5692840, 7969976, 9962470, 19924940, 39849880]

約数ペア:

[(1, 39849880), (2, 19924940), (4, 9962470), (5, 7969976), (7, 5692840), (8, 4981235), (10, 3984988), (14, 2846420), (20, 1992494), (28, 1423210), (31, 1285480), (35, 1138568), (40, 996247), (56, 711605), (62, 642740), (70, 569284), (124, 321370), (140, 284642), (155, 257096), (217, 183640), (248, 160685), (280, 142321), (310, 128548), (434, 91820), (620, 64274), (868, 45910), (1085, 36728), (1240, 32137), (1736, 22955), (2170, 18364), (4340, 9182), (4591, 8680)]