12981080

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:241

約数の個数: 96

約数和(自身を含む): 35089200

約数和(自身を除く): 22108120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 49, 56, 70, 74, 98, 140, 148, 179, 185, 196, 245, 259, 280, 296, 358, 370, 392, 490, 518, 716, 740, 895, 980, 1036, 1253, 1295, 1432, 1480, 1790, 1813, 1960, 2072, 2506, 2590, 3580, 3626, 5012, 5180, 6265, 6623, 7160, 7252, 8771, 9065, 10024, 10360, 12530, 13246, 14504, 17542, 18130, 25060, 26492, 33115, 35084, 36260, 43855, 46361, 50120, 52984, 66230, 70168, 72520, 87710, 92722, 132460, 175420, 185444, 231805, 264920, 324527, 350840, 370888, 463610, 649054, 927220, 1298108, 1622635, 1854440, 2596216, 3245270, 6490540, 12981080]

約数ペア:

[(1, 12981080), (2, 6490540), (4, 3245270), (5, 2596216), (7, 1854440), (8, 1622635), (10, 1298108), (14, 927220), (20, 649054), (28, 463610), (35, 370888), (37, 350840), (40, 324527), (49, 264920), (56, 231805), (70, 185444), (74, 175420), (98, 132460), (140, 92722), (148, 87710), (179, 72520), (185, 70168), (196, 66230), (245, 52984), (259, 50120), (280, 46361), (296, 43855), (358, 36260), (370, 35084), (392, 33115), (490, 26492), (518, 25060), (716, 18130), (740, 17542), (895, 14504), (980, 13246), (1036, 12530), (1253, 10360), (1295, 10024), (1432, 9065), (1480, 8771), (1790, 7252), (1813, 7160), (1960, 6623), (2072, 6265), (2506, 5180), (2590, 5012), (3580, 3626)]