20365072

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:296

約数の個数: 80

約数和(自身を含む): 49496832

約数和(自身を除く): 29131760

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 71, 91, 104, 112, 142, 182, 197, 208, 284, 364, 394, 497, 568, 728, 788, 923, 994, 1136, 1379, 1456, 1576, 1846, 1988, 2561, 2758, 3152, 3692, 3976, 5122, 5516, 6461, 7384, 7952, 10244, 11032, 12922, 13987, 14768, 17927, 20488, 22064, 25844, 27974, 35854, 40976, 51688, 55948, 71708, 97909, 103376, 111896, 143416, 181831, 195818, 223792, 286832, 363662, 391636, 727324, 783272, 1272817, 1454648, 1566544, 2545634, 2909296, 5091268, 10182536, 20365072]

約数ペア:

[(1, 20365072), (2, 10182536), (4, 5091268), (7, 2909296), (8, 2545634), (13, 1566544), (14, 1454648), (16, 1272817), (26, 783272), (28, 727324), (52, 391636), (56, 363662), (71, 286832), (91, 223792), (104, 195818), (112, 181831), (142, 143416), (182, 111896), (197, 103376), (208, 97909), (284, 71708), (364, 55948), (394, 51688), (497, 40976), (568, 35854), (728, 27974), (788, 25844), (923, 22064), (994, 20488), (1136, 17927), (1379, 14768), (1456, 13987), (1576, 12922), (1846, 11032), (1988, 10244), (2561, 7952), (2758, 7384), (3152, 6461), (3692, 5516), (3976, 5122)]