289794540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{689987}}^1$

素因数の和:690006

約数の個数: 48

約数和(自身を含む): 927343872

約数和(自身を除く): 637549332

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 689987, 1379974, 2069961, 2759948, 3449935, 4139922, 4829909, 6899870, 8279844, 9659818, 10349805, 13799740, 14489727, 19319636, 20699610, 24149545, 28979454, 41399220, 48299090, 57958908, 72448635, 96598180, 144897270, 289794540]

約数ペア:

[(1, 289794540), (2, 144897270), (3, 96598180), (4, 72448635), (5, 57958908), (6, 48299090), (7, 41399220), (10, 28979454), (12, 24149545), (14, 20699610), (15, 19319636), (20, 14489727), (21, 13799740), (28, 10349805), (30, 9659818), (35, 8279844), (42, 6899870), (60, 4829909), (70, 4139922), (84, 3449935), (105, 2759948), (140, 2069961), (210, 1379974), (420, 689987)]