128778240

素因数分解:

$2^{16}\times 3^1\times 5^1\times {\mathrm{131}}^1$

素因数の和:171

約数の個数: 136

約数和(自身を含む): 415232928

約数和(自身を除く): 286454688

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, 131, 160, 192, 240, 256, 262, 320, 384, 393, 480, 512, 524, 640, 655, 768, 786, 960, 1024, 1048, 1280, 1310, 1536, 1572, 1920, 1965, 2048, 2096, 2560, 2620, 3072, 3144, 3840, 3930, 4096, 4192, 5120, 5240, 6144, 6288, 7680, 7860, 8192, 8384, 10240, 10480, 12288, 12576, 15360, 15720, 16384, 16768, 20480, 20960, 24576, 25152, 30720, 31440, 32768, 33536, 40960, 41920, 49152, 50304, 61440, 62880, 65536, 67072, 81920, 83840, 98304, 100608, 122880, 125760, 134144, 163840, 167680, 196608, 201216, 245760, 251520, 268288, 327680, 335360, 402432, 491520, 503040, 536576, 670720, 804864, 983040, 1006080, 1073152, 1341440, 1609728, 2012160, 2146304, 2682880, 3219456, 4024320, 4292608, 5365760, 6438912, 8048640, 8585216, 10731520, 12877824, 16097280, 21463040, 25755648, 32194560, 42926080, 64389120, 128778240]

約数ペア:

[(1, 128778240), (2, 64389120), (3, 42926080), (4, 32194560), (5, 25755648), (6, 21463040), (8, 16097280), (10, 12877824), (12, 10731520), (15, 8585216), (16, 8048640), (20, 6438912), (24, 5365760), (30, 4292608), (32, 4024320), (40, 3219456), (48, 2682880), (60, 2146304), (64, 2012160), (80, 1609728), (96, 1341440), (120, 1073152), (128, 1006080), (131, 983040), (160, 804864), (192, 670720), (240, 536576), (256, 503040), (262, 491520), (320, 402432), (384, 335360), (393, 327680), (480, 268288), (512, 251520), (524, 245760), (640, 201216), (655, 196608), (768, 167680), (786, 163840), (960, 134144), (1024, 125760), (1048, 122880), (1280, 100608), (1310, 98304), (1536, 83840), (1572, 81920), (1920, 67072), (1965, 65536), (2048, 62880), (2096, 61440), (2560, 50304), (2620, 49152), (3072, 41920), (3144, 40960), (3840, 33536), (3930, 32768), (4096, 31440), (4192, 30720), (5120, 25152), (5240, 24576), (6144, 20960), (6288, 20480), (7680, 16768), (7860, 16384), (8192, 15720), (8384, 15360), (10240, 12576), (10480, 12288)]