20913917632

素因数分解:

$2^6\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1\times {\mathrm{347}}^1$

素因数の和:726

約数の個数: 112

約数和(自身を含む): 43242780672

約数和(自身を除く): 22328863040

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 103, 164, 206, 223, 328, 347, 412, 446, 656, 694, 824, 892, 1312, 1388, 1648, 1784, 2624, 2776, 3296, 3568, 4223, 5552, 6592, 7136, 8446, 9143, 11104, 14227, 14272, 16892, 18286, 22208, 22969, 28454, 33784, 35741, 36572, 45938, 56908, 67568, 71482, 73144, 77381, 91876, 113816, 135136, 142964, 146288, 154762, 183752, 227632, 270272, 285928, 292576, 309524, 367504, 455264, 571856, 585152, 619048, 735008, 910528, 941729, 1143712, 1238096, 1465381, 1470016, 1883458, 2287424, 2476192, 2930762, 3172621, 3766916, 4952384, 5861524, 6345242, 7533832, 7970243, 11723048, 12690484, 15067664, 15940486, 23446096, 25380968, 30135328, 31880972, 46892192, 50761936, 60270656, 63761944, 93784384, 101523872, 127523888, 203047744, 255047776, 326779963, 510095552, 653559926, 1307119852, 2614239704, 5228479408, 10456958816, 20913917632]

約数ペア:

[(1, 20913917632), (2, 10456958816), (4, 5228479408), (8, 2614239704), (16, 1307119852), (32, 653559926), (41, 510095552), (64, 326779963), (82, 255047776), (103, 203047744), (164, 127523888), (206, 101523872), (223, 93784384), (328, 63761944), (347, 60270656), (412, 50761936), (446, 46892192), (656, 31880972), (694, 30135328), (824, 25380968), (892, 23446096), (1312, 15940486), (1388, 15067664), (1648, 12690484), (1784, 11723048), (2624, 7970243), (2776, 7533832), (3296, 6345242), (3568, 5861524), (4223, 4952384), (5552, 3766916), (6592, 3172621), (7136, 2930762), (8446, 2476192), (9143, 2287424), (11104, 1883458), (14227, 1470016), (14272, 1465381), (16892, 1238096), (18286, 1143712), (22208, 941729), (22969, 910528), (28454, 735008), (33784, 619048), (35741, 585152), (36572, 571856), (45938, 455264), (56908, 367504), (67568, 309524), (71482, 292576), (73144, 285928), (77381, 270272), (91876, 227632), (113816, 183752), (135136, 154762), (142964, 146288)]