315278080

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18947}}^1$

素因数の和:18981

約数の個数: 72

約数和(自身を含む): 813323952

約数和(自身を除く): 498045872

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 16640, 18947, 37894, 75788, 94735, 151576, 189470, 246311, 303152, 378940, 492622, 606304, 757880, 985244, 1212608, 1231555, 1515760, 1970488, 2425216, 2463110, 3031520, 3940976, 4850432, 4926220, 6063040, 7881952, 9852440, 12126080, 15763904, 19704880, 24252160, 31527808, 39409760, 63055616, 78819520, 157639040, 315278080]

約数ペア:

[(1, 315278080), (2, 157639040), (4, 78819520), (5, 63055616), (8, 39409760), (10, 31527808), (13, 24252160), (16, 19704880), (20, 15763904), (26, 12126080), (32, 9852440), (40, 7881952), (52, 6063040), (64, 4926220), (65, 4850432), (80, 3940976), (104, 3031520), (128, 2463110), (130, 2425216), (160, 1970488), (208, 1515760), (256, 1231555), (260, 1212608), (320, 985244), (416, 757880), (520, 606304), (640, 492622), (832, 378940), (1040, 303152), (1280, 246311), (1664, 189470), (2080, 151576), (3328, 94735), (4160, 75788), (8320, 37894), (16640, 18947)]