90701660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20899}}^1$

素因数の和:20946

約数の個数: 48

約数和(自身を含む): 224716800

約数和(自身を除く): 134015140

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, 20899, 41798, 83596, 104495, 146293, 208990, 292586, 417980, 585172, 647869, 731465, 1295738, 1462930, 2591476, 2925860, 3239345, 4535083, 6478690, 9070166, 12957380, 18140332, 22675415, 45350830, 90701660]

約数ペア:

[(1, 90701660), (2, 45350830), (4, 22675415), (5, 18140332), (7, 12957380), (10, 9070166), (14, 6478690), (20, 4535083), (28, 3239345), (31, 2925860), (35, 2591476), (62, 1462930), (70, 1295738), (124, 731465), (140, 647869), (155, 585172), (217, 417980), (310, 292586), (434, 208990), (620, 146293), (868, 104495), (1085, 83596), (2170, 41798), (4340, 20899)]