20163904

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:503

約数の個数: 56

約数和(自身を含む): 43452288

約数和(自身を除く): 23288384

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 43, 64, 68, 86, 136, 172, 272, 344, 431, 544, 688, 731, 862, 1088, 1376, 1462, 1724, 2752, 2924, 3448, 5848, 6896, 7327, 11696, 13792, 14654, 18533, 23392, 27584, 29308, 37066, 46784, 58616, 74132, 117232, 148264, 234464, 296528, 315061, 468928, 593056, 630122, 1186112, 1260244, 2520488, 5040976, 10081952, 20163904]

約数ペア:

[(1, 20163904), (2, 10081952), (4, 5040976), (8, 2520488), (16, 1260244), (17, 1186112), (32, 630122), (34, 593056), (43, 468928), (64, 315061), (68, 296528), (86, 234464), (136, 148264), (172, 117232), (272, 74132), (344, 58616), (431, 46784), (544, 37066), (688, 29308), (731, 27584), (862, 23392), (1088, 18533), (1376, 14654), (1462, 13792), (1724, 11696), (2752, 7327), (2924, 6896), (3448, 5848)]