19912314585

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{311}}^1\times {\mathrm{761}}^1$

素因数の和:1230

約数の個数: 64

約数和(自身を含む): 32865730560

約数和(自身を除く): 12953415975

約数列:

[1, 3, 5, 15, 71, 79, 213, 237, 311, 355, 395, 761, 933, 1065, 1185, 1555, 2283, 3805, 4665, 5609, 11415, 16827, 22081, 24569, 28045, 54031, 60119, 66243, 73707, 84135, 110405, 122845, 162093, 180357, 236671, 270155, 300595, 331215, 368535, 710013, 810465, 901785, 1183355, 1744399, 3550065, 4268449, 5233197, 8721995, 12805347, 16803641, 18697009, 21342245, 26165985, 50410923, 56091027, 64026735, 84018205, 93485045, 252054615, 280455135, 1327487639, 3982462917, 6637438195, 19912314585]

約数ペア:

[(1, 19912314585), (3, 6637438195), (5, 3982462917), (15, 1327487639), (71, 280455135), (79, 252054615), (213, 93485045), (237, 84018205), (311, 64026735), (355, 56091027), (395, 50410923), (761, 26165985), (933, 21342245), (1065, 18697009), (1185, 16803641), (1555, 12805347), (2283, 8721995), (3805, 5233197), (4665, 4268449), (5609, 3550065), (11415, 1744399), (16827, 1183355), (22081, 901785), (24569, 810465), (28045, 710013), (54031, 368535), (60119, 331215), (66243, 300595), (73707, 270155), (84135, 236671), (110405, 180357), (122845, 162093)]