51681292

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 109513040

約数和(自身を除く): 57831748

約数列:

[1, 2, 4, 13, 17, 19, 26, 34, 38, 52, 68, 76, 181, 221, 247, 289, 323, 362, 442, 494, 578, 646, 724, 884, 988, 1156, 1292, 2353, 3077, 3439, 3757, 4199, 4706, 5491, 6154, 6878, 7514, 8398, 9412, 10982, 12308, 13756, 15028, 16796, 21964, 40001, 44707, 52309, 58463, 71383, 80002, 89414, 104618, 116926, 142766, 160004, 178828, 209236, 233852, 285532, 680017, 760019, 993871, 1360034, 1520038, 1987742, 2720068, 3040076, 3975484, 12920323, 25840646, 51681292]

約数ペア:

[(1, 51681292), (2, 25840646), (4, 12920323), (13, 3975484), (17, 3040076), (19, 2720068), (26, 1987742), (34, 1520038), (38, 1360034), (52, 993871), (68, 760019), (76, 680017), (181, 285532), (221, 233852), (247, 209236), (289, 178828), (323, 160004), (362, 142766), (442, 116926), (494, 104618), (578, 89414), (646, 80002), (724, 71383), (884, 58463), (988, 52309), (1156, 44707), (1292, 40001), (2353, 21964), (3077, 16796), (3439, 15028), (3757, 13756), (4199, 12308), (4706, 10982), (5491, 9412), (6154, 8398), (6878, 7514)]