20161232

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:316

約数の個数: 80

約数和(自身を含む): 49080192

約数和(自身を除く): 28918960

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 61, 91, 104, 112, 122, 182, 208, 227, 244, 364, 427, 454, 488, 728, 793, 854, 908, 976, 1456, 1586, 1589, 1708, 1816, 2951, 3172, 3178, 3416, 3632, 5551, 5902, 6344, 6356, 6832, 11102, 11804, 12688, 12712, 13847, 20657, 22204, 23608, 25424, 27694, 41314, 44408, 47216, 55388, 82628, 88816, 96929, 110776, 165256, 180011, 193858, 221552, 330512, 360022, 387716, 720044, 775432, 1260077, 1440088, 1550864, 2520154, 2880176, 5040308, 10080616, 20161232]

約数ペア:

[(1, 20161232), (2, 10080616), (4, 5040308), (7, 2880176), (8, 2520154), (13, 1550864), (14, 1440088), (16, 1260077), (26, 775432), (28, 720044), (52, 387716), (56, 360022), (61, 330512), (91, 221552), (104, 193858), (112, 180011), (122, 165256), (182, 110776), (208, 96929), (227, 88816), (244, 82628), (364, 55388), (427, 47216), (454, 44408), (488, 41314), (728, 27694), (793, 25424), (854, 23608), (908, 22204), (976, 20657), (1456, 13847), (1586, 12712), (1589, 12688), (1708, 11804), (1816, 11102), (2951, 6832), (3172, 6356), (3178, 6344), (3416, 5902), (3632, 5551)]