215210380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139747}}^1$

素因数の和:139774

約数の個数: 48

約数和(自身を含む): 563463936

約数和(自身を除く): 348253556

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 139747, 279494, 558988, 698735, 978229, 1397470, 1537217, 1956458, 2794940, 3074434, 3912916, 4891145, 6148868, 7686085, 9782290, 10760519, 15372170, 19564580, 21521038, 30744340, 43042076, 53802595, 107605190, 215210380]

約数ペア:

[(1, 215210380), (2, 107605190), (4, 53802595), (5, 43042076), (7, 30744340), (10, 21521038), (11, 19564580), (14, 15372170), (20, 10760519), (22, 9782290), (28, 7686085), (35, 6148868), (44, 4891145), (55, 3912916), (70, 3074434), (77, 2794940), (110, 1956458), (140, 1537217), (154, 1397470), (220, 978229), (308, 698735), (385, 558988), (770, 279494), (1540, 139747)]