20548660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:205

約数の個数: 96

約数和(自身を含む): 51093504

約数和(自身を除く): 30544844

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 31, 44, 46, 55, 62, 92, 110, 115, 124, 131, 155, 220, 230, 253, 262, 310, 341, 460, 506, 524, 620, 655, 682, 713, 1012, 1265, 1310, 1364, 1426, 1441, 1705, 2530, 2620, 2852, 2882, 3013, 3410, 3565, 4061, 5060, 5764, 6026, 6820, 7130, 7205, 7843, 8122, 12052, 14260, 14410, 15065, 15686, 16244, 20305, 28820, 30130, 31372, 33143, 39215, 40610, 44671, 60260, 66286, 78430, 81220, 89342, 93403, 132572, 156860, 165715, 178684, 186806, 223355, 331430, 373612, 446710, 467015, 662860, 893420, 934030, 1027433, 1868060, 2054866, 4109732, 5137165, 10274330, 20548660]

約数ペア:

[(1, 20548660), (2, 10274330), (4, 5137165), (5, 4109732), (10, 2054866), (11, 1868060), (20, 1027433), (22, 934030), (23, 893420), (31, 662860), (44, 467015), (46, 446710), (55, 373612), (62, 331430), (92, 223355), (110, 186806), (115, 178684), (124, 165715), (131, 156860), (155, 132572), (220, 93403), (230, 89342), (253, 81220), (262, 78430), (310, 66286), (341, 60260), (460, 44671), (506, 40610), (524, 39215), (620, 33143), (655, 31372), (682, 30130), (713, 28820), (1012, 20305), (1265, 16244), (1310, 15686), (1364, 15065), (1426, 14410), (1441, 14260), (1705, 12052), (2530, 8122), (2620, 7843), (2852, 7205), (2882, 7130), (3013, 6820), (3410, 6026), (3565, 5764), (4061, 5060)]