7921340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 19822320

約数和(自身を除く): 11900980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 59, 70, 98, 118, 137, 140, 196, 236, 245, 274, 295, 413, 490, 548, 590, 685, 826, 959, 980, 1180, 1370, 1652, 1918, 2065, 2740, 2891, 3836, 4130, 4795, 5782, 6713, 8083, 8260, 9590, 11564, 13426, 14455, 16166, 19180, 26852, 28910, 32332, 33565, 40415, 56581, 57820, 67130, 80830, 113162, 134260, 161660, 226324, 282905, 396067, 565810, 792134, 1131620, 1584268, 1980335, 3960670, 7921340]

約数ペア:

[(1, 7921340), (2, 3960670), (4, 1980335), (5, 1584268), (7, 1131620), (10, 792134), (14, 565810), (20, 396067), (28, 282905), (35, 226324), (49, 161660), (59, 134260), (70, 113162), (98, 80830), (118, 67130), (137, 57820), (140, 56581), (196, 40415), (236, 33565), (245, 32332), (274, 28910), (295, 26852), (413, 19180), (490, 16166), (548, 14455), (590, 13426), (685, 11564), (826, 9590), (959, 8260), (980, 8083), (1180, 6713), (1370, 5782), (1652, 4795), (1918, 4130), (2065, 3836), (2740, 2891)]