16720656

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:720

約数の個数: 80

約数和(自身を含む): 47282688

約数和(自身を除く): 30562032

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 31, 34, 48, 51, 62, 68, 93, 102, 124, 136, 186, 204, 248, 272, 372, 408, 496, 527, 661, 744, 816, 1054, 1322, 1488, 1581, 1983, 2108, 2644, 3162, 3966, 4216, 5288, 6324, 7932, 8432, 10576, 11237, 12648, 15864, 20491, 22474, 25296, 31728, 33711, 40982, 44948, 61473, 67422, 81964, 89896, 122946, 134844, 163928, 179792, 245892, 269688, 327856, 348347, 491784, 539376, 696694, 983568, 1045041, 1393388, 2090082, 2786776, 4180164, 5573552, 8360328, 16720656]

約数ペア:

[(1, 16720656), (2, 8360328), (3, 5573552), (4, 4180164), (6, 2786776), (8, 2090082), (12, 1393388), (16, 1045041), (17, 983568), (24, 696694), (31, 539376), (34, 491784), (48, 348347), (51, 327856), (62, 269688), (68, 245892), (93, 179792), (102, 163928), (124, 134844), (136, 122946), (186, 89896), (204, 81964), (248, 67422), (272, 61473), (372, 44948), (408, 40982), (496, 33711), (527, 31728), (661, 25296), (744, 22474), (816, 20491), (1054, 15864), (1322, 12648), (1488, 11237), (1581, 10576), (1983, 8432), (2108, 7932), (2644, 6324), (3162, 5288), (3966, 4216)]