19640372408

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1637}}^1\times {\mathrm{1877}}^1$

素因数の和:3584

約数の個数: 64

約数和(自身を含む): 39867085440

約数和(自身を除く): 20226713032

約数列:

[1, 2, 4, 8, 17, 34, 47, 68, 94, 136, 188, 376, 799, 1598, 1637, 1877, 3196, 3274, 3754, 6392, 6548, 7508, 13096, 15016, 27829, 31909, 55658, 63818, 76939, 88219, 111316, 127636, 153878, 176438, 222632, 255272, 307756, 352876, 615512, 705752, 1307963, 1499723, 2615926, 2999446, 3072649, 5231852, 5998892, 6145298, 10463704, 11997784, 12290596, 24581192, 52235033, 104470066, 144414503, 208940132, 288829006, 417880264, 577658012, 1155316024, 2455046551, 4910093102, 9820186204, 19640372408]

約数ペア:

[(1, 19640372408), (2, 9820186204), (4, 4910093102), (8, 2455046551), (17, 1155316024), (34, 577658012), (47, 417880264), (68, 288829006), (94, 208940132), (136, 144414503), (188, 104470066), (376, 52235033), (799, 24581192), (1598, 12290596), (1637, 11997784), (1877, 10463704), (3196, 6145298), (3274, 5998892), (3754, 5231852), (6392, 3072649), (6548, 2999446), (7508, 2615926), (13096, 1499723), (15016, 1307963), (27829, 705752), (31909, 615512), (55658, 352876), (63818, 307756), (76939, 255272), (88219, 222632), (111316, 176438), (127636, 153878)]