15138920

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 35827920

約数和(自身を除く): 20689000

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 53, 74, 106, 148, 185, 193, 212, 265, 296, 370, 386, 424, 530, 740, 772, 965, 1060, 1480, 1544, 1930, 1961, 2120, 3860, 3922, 7141, 7720, 7844, 9805, 10229, 14282, 15688, 19610, 20458, 28564, 35705, 39220, 40916, 51145, 57128, 71410, 78440, 81832, 102290, 142820, 204580, 285640, 378473, 409160, 756946, 1513892, 1892365, 3027784, 3784730, 7569460, 15138920]

約数ペア:

[(1, 15138920), (2, 7569460), (4, 3784730), (5, 3027784), (8, 1892365), (10, 1513892), (20, 756946), (37, 409160), (40, 378473), (53, 285640), (74, 204580), (106, 142820), (148, 102290), (185, 81832), (193, 78440), (212, 71410), (265, 57128), (296, 51145), (370, 40916), (386, 39220), (424, 35705), (530, 28564), (740, 20458), (772, 19610), (965, 15688), (1060, 14282), (1480, 10229), (1544, 9805), (1930, 7844), (1961, 7720), (2120, 7141), (3860, 3922)]