19728896

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:173

約数の個数: 80

約数和(自身を含む): 44782848

約数和(自身を除く): 25053952

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 64, 88, 113, 124, 128, 176, 226, 248, 256, 341, 352, 452, 496, 512, 682, 704, 904, 992, 1243, 1364, 1408, 1808, 1984, 2486, 2728, 2816, 3503, 3616, 3968, 4972, 5456, 5632, 7006, 7232, 7936, 9944, 10912, 14012, 14464, 15872, 19888, 21824, 28024, 28928, 38533, 39776, 43648, 56048, 57856, 77066, 79552, 87296, 112096, 154132, 159104, 174592, 224192, 308264, 318208, 448384, 616528, 636416, 896768, 1233056, 1793536, 2466112, 4932224, 9864448, 19728896]

約数ペア:

[(1, 19728896), (2, 9864448), (4, 4932224), (8, 2466112), (11, 1793536), (16, 1233056), (22, 896768), (31, 636416), (32, 616528), (44, 448384), (62, 318208), (64, 308264), (88, 224192), (113, 174592), (124, 159104), (128, 154132), (176, 112096), (226, 87296), (248, 79552), (256, 77066), (341, 57856), (352, 56048), (452, 43648), (496, 39776), (512, 38533), (682, 28928), (704, 28024), (904, 21824), (992, 19888), (1243, 15872), (1364, 14464), (1408, 14012), (1808, 10912), (1984, 9944), (2486, 7936), (2728, 7232), (2816, 7006), (3503, 5632), (3616, 5456), (3968, 4972)]