291278540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{3581}}^1$

素因数の和:3687

約数の個数: 72

約数和(自身を含む): 720325872

約数和(自身を除く): 429047332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 83, 98, 140, 166, 196, 245, 332, 415, 490, 581, 830, 980, 1162, 1660, 2324, 2905, 3581, 4067, 5810, 7162, 8134, 11620, 14324, 16268, 17905, 20335, 25067, 35810, 40670, 50134, 71620, 81340, 100268, 125335, 175469, 250670, 297223, 350938, 501340, 594446, 701876, 877345, 1188892, 1486115, 1754690, 2080561, 2972230, 3509380, 4161122, 5944460, 8322244, 10402805, 14563927, 20805610, 29127854, 41611220, 58255708, 72819635, 145639270, 291278540]

約数ペア:

[(1, 291278540), (2, 145639270), (4, 72819635), (5, 58255708), (7, 41611220), (10, 29127854), (14, 20805610), (20, 14563927), (28, 10402805), (35, 8322244), (49, 5944460), (70, 4161122), (83, 3509380), (98, 2972230), (140, 2080561), (166, 1754690), (196, 1486115), (245, 1188892), (332, 877345), (415, 701876), (490, 594446), (581, 501340), (830, 350938), (980, 297223), (1162, 250670), (1660, 175469), (2324, 125335), (2905, 100268), (3581, 81340), (4067, 71620), (5810, 50134), (7162, 40670), (8134, 35810), (11620, 25067), (14324, 20335), (16268, 17905)]