19660147185

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{20479}}^1$

素因数の和:20758

約数の個数: 64

約数和(自身を含む): 36993761280

約数和(自身を除く): 17333614095

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 105, 123, 205, 223, 287, 615, 669, 861, 1115, 1435, 1561, 3345, 4305, 4683, 7805, 9143, 20479, 23415, 27429, 45715, 61437, 64001, 102395, 137145, 143353, 192003, 307185, 320005, 430059, 716765, 839639, 960015, 2150295, 2518917, 4198195, 4566817, 5877473, 12594585, 13700451, 17632419, 22834085, 29387365, 31967719, 68502255, 88162095, 95903157, 159838595, 187239497, 479515785, 561718491, 936197485, 1310676479, 2808592455, 3932029437, 6553382395, 19660147185]

約数ペア:

[(1, 19660147185), (3, 6553382395), (5, 3932029437), (7, 2808592455), (15, 1310676479), (21, 936197485), (35, 561718491), (41, 479515785), (105, 187239497), (123, 159838595), (205, 95903157), (223, 88162095), (287, 68502255), (615, 31967719), (669, 29387365), (861, 22834085), (1115, 17632419), (1435, 13700451), (1561, 12594585), (3345, 5877473), (4305, 4566817), (4683, 4198195), (7805, 2518917), (9143, 2150295), (20479, 960015), (23415, 839639), (27429, 716765), (45715, 430059), (61437, 320005), (64001, 307185), (102395, 192003), (137145, 143353)]