19729144

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:188

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 21742856

約数列:

[1, 2, 4, 8, 19, 31, 38, 53, 62, 76, 79, 106, 124, 152, 158, 212, 248, 316, 424, 589, 632, 1007, 1178, 1501, 1643, 2014, 2356, 2449, 3002, 3286, 4028, 4187, 4712, 4898, 6004, 6572, 8056, 8374, 9796, 12008, 13144, 16748, 19592, 31217, 33496, 46531, 62434, 79553, 93062, 124868, 129797, 159106, 186124, 249736, 259594, 318212, 372248, 519188, 636424, 1038376, 2466143, 4932286, 9864572, 19729144]

約数ペア:

[(1, 19729144), (2, 9864572), (4, 4932286), (8, 2466143), (19, 1038376), (31, 636424), (38, 519188), (53, 372248), (62, 318212), (76, 259594), (79, 249736), (106, 186124), (124, 159106), (152, 129797), (158, 124868), (212, 93062), (248, 79553), (316, 62434), (424, 46531), (589, 33496), (632, 31217), (1007, 19592), (1178, 16748), (1501, 13144), (1643, 12008), (2014, 9796), (2356, 8374), (2449, 8056), (3002, 6572), (3286, 6004), (4028, 4898), (4187, 4712)]