18264890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:507

約数の個数: 64

約数和(自身を含む): 40919040

約数和(自身を除く): 22654150

約数列:

[1, 2, 5, 7, 10, 14, 19, 31, 35, 38, 62, 70, 95, 133, 155, 190, 217, 266, 310, 434, 443, 589, 665, 886, 1085, 1178, 1330, 2170, 2215, 2945, 3101, 4123, 4430, 5890, 6202, 8246, 8417, 13733, 15505, 16834, 20615, 27466, 31010, 41230, 42085, 58919, 68665, 84170, 96131, 117838, 137330, 192262, 260927, 294595, 480655, 521854, 589190, 961310, 1304635, 1826489, 2609270, 3652978, 9132445, 18264890]

約数ペア:

[(1, 18264890), (2, 9132445), (5, 3652978), (7, 2609270), (10, 1826489), (14, 1304635), (19, 961310), (31, 589190), (35, 521854), (38, 480655), (62, 294595), (70, 260927), (95, 192262), (133, 137330), (155, 117838), (190, 96131), (217, 84170), (266, 68665), (310, 58919), (434, 42085), (443, 41230), (589, 31010), (665, 27466), (886, 20615), (1085, 16834), (1178, 15505), (1330, 13733), (2170, 8417), (2215, 8246), (2945, 6202), (3101, 5890), (4123, 4430)]