19614440

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{457}}^1$

素因数の和:534

約数の個数: 64

約数和(自身を含む): 46990800

約数和(自身を除く): 27376360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 37, 40, 58, 74, 116, 145, 148, 185, 232, 290, 296, 370, 457, 580, 740, 914, 1073, 1160, 1480, 1828, 2146, 2285, 3656, 4292, 4570, 5365, 8584, 9140, 10730, 13253, 16909, 18280, 21460, 26506, 33818, 42920, 53012, 66265, 67636, 84545, 106024, 132530, 135272, 169090, 265060, 338180, 490361, 530120, 676360, 980722, 1961444, 2451805, 3922888, 4903610, 9807220, 19614440]

約数ペア:

[(1, 19614440), (2, 9807220), (4, 4903610), (5, 3922888), (8, 2451805), (10, 1961444), (20, 980722), (29, 676360), (37, 530120), (40, 490361), (58, 338180), (74, 265060), (116, 169090), (145, 135272), (148, 132530), (185, 106024), (232, 84545), (290, 67636), (296, 66265), (370, 53012), (457, 42920), (580, 33818), (740, 26506), (914, 21460), (1073, 18280), (1160, 16909), (1480, 13253), (1828, 10730), (2146, 9140), (2285, 8584), (3656, 5365), (4292, 4570)]