20138784

素因数分解:

$2^5\times 3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:274

約数の個数: 96

約数和(自身を含む): 56871360

約数和(自身を除く): 36732576

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 32, 38, 48, 57, 61, 76, 96, 114, 122, 152, 181, 183, 228, 244, 304, 362, 366, 456, 488, 543, 608, 724, 732, 912, 976, 1086, 1159, 1448, 1464, 1824, 1952, 2172, 2318, 2896, 2928, 3439, 3477, 4344, 4636, 5792, 5856, 6878, 6954, 8688, 9272, 10317, 11041, 13756, 13908, 17376, 18544, 20634, 22082, 27512, 27816, 33123, 37088, 41268, 44164, 55024, 55632, 66246, 82536, 88328, 110048, 111264, 132492, 165072, 176656, 209779, 264984, 330144, 353312, 419558, 529968, 629337, 839116, 1059936, 1258674, 1678232, 2517348, 3356464, 5034696, 6712928, 10069392, 20138784]

約数ペア:

[(1, 20138784), (2, 10069392), (3, 6712928), (4, 5034696), (6, 3356464), (8, 2517348), (12, 1678232), (16, 1258674), (19, 1059936), (24, 839116), (32, 629337), (38, 529968), (48, 419558), (57, 353312), (61, 330144), (76, 264984), (96, 209779), (114, 176656), (122, 165072), (152, 132492), (181, 111264), (183, 110048), (228, 88328), (244, 82536), (304, 66246), (362, 55632), (366, 55024), (456, 44164), (488, 41268), (543, 37088), (608, 33123), (724, 27816), (732, 27512), (912, 22082), (976, 20634), (1086, 18544), (1159, 17376), (1448, 13908), (1464, 13756), (1824, 11041), (1952, 10317), (2172, 9272), (2318, 8688), (2896, 6954), (2928, 6878), (3439, 5856), (3477, 5792), (4344, 4636)]