20151984

素因数分解:

$2^4\times 3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{467}}^1$

素因数の和:538

約数の個数: 80

約数和(自身を含む): 55710720

約数和(自身を除く): 35558736

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 31, 48, 58, 62, 87, 93, 116, 124, 174, 186, 232, 248, 348, 372, 464, 467, 496, 696, 744, 899, 934, 1392, 1401, 1488, 1798, 1868, 2697, 2802, 3596, 3736, 5394, 5604, 7192, 7472, 10788, 11208, 13543, 14384, 14477, 21576, 22416, 27086, 28954, 40629, 43152, 43431, 54172, 57908, 81258, 86862, 108344, 115816, 162516, 173724, 216688, 231632, 325032, 347448, 419833, 650064, 694896, 839666, 1259499, 1679332, 2518998, 3358664, 5037996, 6717328, 10075992, 20151984]

約数ペア:

[(1, 20151984), (2, 10075992), (3, 6717328), (4, 5037996), (6, 3358664), (8, 2518998), (12, 1679332), (16, 1259499), (24, 839666), (29, 694896), (31, 650064), (48, 419833), (58, 347448), (62, 325032), (87, 231632), (93, 216688), (116, 173724), (124, 162516), (174, 115816), (186, 108344), (232, 86862), (248, 81258), (348, 57908), (372, 54172), (464, 43431), (467, 43152), (496, 40629), (696, 28954), (744, 27086), (899, 22416), (934, 21576), (1392, 14477), (1401, 14384), (1488, 13543), (1798, 11208), (1868, 10788), (2697, 7472), (2802, 7192), (3596, 5604), (3736, 5394)]