20627600

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:217

約数の個数: 120

約数和(自身を含む): 58121280

約数和(自身を除く): 37493680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 53, 56, 70, 80, 100, 106, 112, 139, 140, 175, 200, 212, 265, 278, 280, 350, 371, 400, 424, 530, 556, 560, 695, 700, 742, 848, 973, 1060, 1112, 1325, 1390, 1400, 1484, 1855, 1946, 2120, 2224, 2650, 2780, 2800, 2968, 3475, 3710, 3892, 4240, 4865, 5300, 5560, 5936, 6950, 7367, 7420, 7784, 9275, 9730, 10600, 11120, 13900, 14734, 14840, 15568, 18550, 19460, 21200, 24325, 27800, 29468, 29680, 36835, 37100, 38920, 48650, 51569, 55600, 58936, 73670, 74200, 77840, 97300, 103138, 117872, 147340, 148400, 184175, 194600, 206276, 257845, 294680, 368350, 389200, 412552, 515690, 589360, 736700, 825104, 1031380, 1289225, 1473400, 2062760, 2578450, 2946800, 4125520, 5156900, 10313800, 20627600]

約数ペア:

[(1, 20627600), (2, 10313800), (4, 5156900), (5, 4125520), (7, 2946800), (8, 2578450), (10, 2062760), (14, 1473400), (16, 1289225), (20, 1031380), (25, 825104), (28, 736700), (35, 589360), (40, 515690), (50, 412552), (53, 389200), (56, 368350), (70, 294680), (80, 257845), (100, 206276), (106, 194600), (112, 184175), (139, 148400), (140, 147340), (175, 117872), (200, 103138), (212, 97300), (265, 77840), (278, 74200), (280, 73670), (350, 58936), (371, 55600), (400, 51569), (424, 48650), (530, 38920), (556, 37100), (560, 36835), (695, 29680), (700, 29468), (742, 27800), (848, 24325), (973, 21200), (1060, 19460), (1112, 18550), (1325, 15568), (1390, 14840), (1400, 14734), (1484, 13900), (1855, 11120), (1946, 10600), (2120, 9730), (2224, 9275), (2650, 7784), (2780, 7420), (2800, 7367), (2968, 6950), (3475, 5936), (3710, 5560), (3892, 5300), (4240, 4865)]