20161950140

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{271}}^1\times {\mathrm{128273}}^1$

素因数の和:128582

約数の個数: 48

約数和(自身を含む): 43962065280

約数和(自身を除く): 23800115140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 271, 290, 542, 580, 1084, 1355, 2710, 5420, 7859, 15718, 31436, 39295, 78590, 128273, 157180, 256546, 513092, 641365, 1282730, 2565460, 3719917, 7439834, 14879668, 18599585, 34761983, 37199170, 69523966, 74398340, 139047932, 173809915, 347619830, 695239660, 1008097507, 2016195014, 4032390028, 5040487535, 10080975070, 20161950140]

約数ペア:

[(1, 20161950140), (2, 10080975070), (4, 5040487535), (5, 4032390028), (10, 2016195014), (20, 1008097507), (29, 695239660), (58, 347619830), (116, 173809915), (145, 139047932), (271, 74398340), (290, 69523966), (542, 37199170), (580, 34761983), (1084, 18599585), (1355, 14879668), (2710, 7439834), (5420, 3719917), (7859, 2565460), (15718, 1282730), (31436, 641365), (39295, 513092), (78590, 256546), (128273, 157180)]