77956780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:275

約数の個数: 96

約数和(自身を含む): 187612992

約数和(自身を除く): 109656212

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 61, 74, 110, 122, 148, 157, 185, 220, 244, 305, 314, 370, 407, 610, 628, 671, 740, 785, 814, 1220, 1342, 1570, 1628, 1727, 2035, 2257, 2684, 3140, 3355, 3454, 4070, 4514, 5809, 6710, 6908, 8140, 8635, 9028, 9577, 11285, 11618, 13420, 17270, 19154, 22570, 23236, 24827, 29045, 34540, 38308, 45140, 47885, 49654, 58090, 63899, 95770, 99308, 105347, 116180, 124135, 127798, 191540, 210694, 248270, 255596, 319495, 354349, 421388, 496540, 526735, 638990, 708698, 1053470, 1277980, 1417396, 1771745, 2106940, 3543490, 3897839, 7086980, 7795678, 15591356, 19489195, 38978390, 77956780]

約数ペア:

[(1, 77956780), (2, 38978390), (4, 19489195), (5, 15591356), (10, 7795678), (11, 7086980), (20, 3897839), (22, 3543490), (37, 2106940), (44, 1771745), (55, 1417396), (61, 1277980), (74, 1053470), (110, 708698), (122, 638990), (148, 526735), (157, 496540), (185, 421388), (220, 354349), (244, 319495), (305, 255596), (314, 248270), (370, 210694), (407, 191540), (610, 127798), (628, 124135), (671, 116180), (740, 105347), (785, 99308), (814, 95770), (1220, 63899), (1342, 58090), (1570, 49654), (1628, 47885), (1727, 45140), (2035, 38308), (2257, 34540), (2684, 29045), (3140, 24827), (3355, 23236), (3454, 22570), (4070, 19154), (4514, 17270), (5809, 13420), (6710, 11618), (6908, 11285), (8140, 9577), (8635, 9028)]