2556540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{2029}}^1$

素因数の和:2051

約数の個数: 72

約数和(自身を含む): 8867040

約数和(自身を除く): 6310500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 2029, 4058, 6087, 8116, 10145, 12174, 14203, 18261, 20290, 24348, 28406, 30435, 36522, 40580, 42609, 56812, 60870, 71015, 73044, 85218, 91305, 121740, 127827, 142030, 170436, 182610, 213045, 255654, 284060, 365220, 426090, 511308, 639135, 852180, 1278270, 2556540]

約数ペア:

[(1, 2556540), (2, 1278270), (3, 852180), (4, 639135), (5, 511308), (6, 426090), (7, 365220), (9, 284060), (10, 255654), (12, 213045), (14, 182610), (15, 170436), (18, 142030), (20, 127827), (21, 121740), (28, 91305), (30, 85218), (35, 73044), (36, 71015), (42, 60870), (45, 56812), (60, 42609), (63, 40580), (70, 36522), (84, 30435), (90, 28406), (105, 24348), (126, 20290), (140, 18261), (180, 14203), (210, 12174), (252, 10145), (315, 8116), (420, 6087), (630, 4058), (1260, 2029)]