15728640

素因数分解:

$2^{20}\times 3^1\times 5^1$

素因数の和:48

約数の個数: 84

約数和(自身を含む): 50331624

約数和(自身を除く): 34602984

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, 2621440, 3145728, 3932160, 5242880, 7864320, 15728640]

約数ペア:

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