128766540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{306587}}^1$

素因数の和:306606

約数の個数: 48

約数和(自身を含む): 412054272

約数和(自身を除く): 283287732

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, 306587, 613174, 919761, 1226348, 1532935, 1839522, 2146109, 3065870, 3679044, 4292218, 4598805, 6131740, 6438327, 8584436, 9197610, 10730545, 12876654, 18395220, 21461090, 25753308, 32191635, 42922180, 64383270, 128766540]

約数ペア:

[(1, 128766540), (2, 64383270), (3, 42922180), (4, 32191635), (5, 25753308), (6, 21461090), (7, 18395220), (10, 12876654), (12, 10730545), (14, 9197610), (15, 8584436), (20, 6438327), (21, 6131740), (28, 4598805), (30, 4292218), (35, 3679044), (42, 3065870), (60, 2146109), (70, 1839522), (84, 1532935), (105, 1226348), (140, 919761), (210, 613174), (420, 306587)]