31457280

素因数分解:

$2^{21}\times 3^1\times 5^1$

素因数の和:50

約数の個数: 88

約数和(自身を含む): 100663272

約数和(自身を除く): 69205992

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1024, 1280, 1536, 1920, 2048, 2560, 3072, 3840, 4096, 5120, 6144, 7680, 8192, 10240, 12288, 15360, 16384, 20480, 24576, 30720, 32768, 40960, 49152, 61440, 65536, 81920, 98304, 122880, 131072, 163840, 196608, 245760, 262144, 327680, 393216, 491520, 524288, 655360, 786432, 983040, 1048576, 1310720, 1572864, 1966080, 2097152, 2621440, 3145728, 3932160, 5242880, 6291456, 7864320, 10485760, 15728640, 31457280]

約数ペア:

[(1, 31457280), (2, 15728640), (3, 10485760), (4, 7864320), (5, 6291456), (6, 5242880), (8, 3932160), (10, 3145728), (12, 2621440), (15, 2097152), (16, 1966080), (20, 1572864), (24, 1310720), (30, 1048576), (32, 983040), (40, 786432), (48, 655360), (60, 524288), (64, 491520), (80, 393216), (96, 327680), (120, 262144), (128, 245760), (160, 196608), (192, 163840), (240, 131072), (256, 122880), (320, 98304), (384, 81920), (480, 65536), (512, 61440), (640, 49152), (768, 40960), (960, 32768), (1024, 30720), (1280, 24576), (1536, 20480), (1920, 16384), (2048, 15360), (2560, 12288), (3072, 10240), (3840, 8192), (4096, 7680), (5120, 6144)]