1281123456

素因数分解:

$2^7\times 3^1\times {\mathrm{149}}^1\times {\mathrm{22391}}^1$

素因数の和:22557

約数の個数: 64

約数和(自身を含む): 3425976000

約数和(自身を除く): 2144852544

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 149, 192, 298, 384, 447, 596, 894, 1192, 1788, 2384, 3576, 4768, 7152, 9536, 14304, 19072, 22391, 28608, 44782, 57216, 67173, 89564, 134346, 179128, 268692, 358256, 537384, 716512, 1074768, 1433024, 2149536, 2866048, 3336259, 4299072, 6672518, 8598144, 10008777, 13345036, 20017554, 26690072, 40035108, 53380144, 80070216, 106760288, 160140432, 213520576, 320280864, 427041152, 640561728, 1281123456]

約数ペア:

[(1, 1281123456), (2, 640561728), (3, 427041152), (4, 320280864), (6, 213520576), (8, 160140432), (12, 106760288), (16, 80070216), (24, 53380144), (32, 40035108), (48, 26690072), (64, 20017554), (96, 13345036), (128, 10008777), (149, 8598144), (192, 6672518), (298, 4299072), (384, 3336259), (447, 2866048), (596, 2149536), (894, 1433024), (1192, 1074768), (1788, 716512), (2384, 537384), (3576, 358256), (4768, 268692), (7152, 179128), (9536, 134346), (14304, 89564), (19072, 67173), (22391, 57216), (28608, 44782)]