81223680

素因数分解:

$2^{13}\times 3^1\times 5^1\times {\mathrm{661}}^1$

素因数の和:695

約数の個数: 112

約数和(自身を含む): 260293104

約数和(自身を除く): 179069424

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, 661, 768, 960, 1024, 1280, 1322, 1536, 1920, 1983, 2048, 2560, 2644, 3072, 3305, 3840, 3966, 4096, 5120, 5288, 6144, 6610, 7680, 7932, 8192, 9915, 10240, 10576, 12288, 13220, 15360, 15864, 19830, 20480, 21152, 24576, 26440, 30720, 31728, 39660, 40960, 42304, 52880, 61440, 63456, 79320, 84608, 105760, 122880, 126912, 158640, 169216, 211520, 253824, 317280, 338432, 423040, 507648, 634560, 676864, 846080, 1015296, 1269120, 1353728, 1692160, 2030592, 2538240, 2707456, 3384320, 4061184, 5076480, 5414912, 6768640, 8122368, 10152960, 13537280, 16244736, 20305920, 27074560, 40611840, 81223680]

約数ペア:

[(1, 81223680), (2, 40611840), (3, 27074560), (4, 20305920), (5, 16244736), (6, 13537280), (8, 10152960), (10, 8122368), (12, 6768640), (15, 5414912), (16, 5076480), (20, 4061184), (24, 3384320), (30, 2707456), (32, 2538240), (40, 2030592), (48, 1692160), (60, 1353728), (64, 1269120), (80, 1015296), (96, 846080), (120, 676864), (128, 634560), (160, 507648), (192, 423040), (240, 338432), (256, 317280), (320, 253824), (384, 211520), (480, 169216), (512, 158640), (640, 126912), (661, 122880), (768, 105760), (960, 84608), (1024, 79320), (1280, 63456), (1322, 61440), (1536, 52880), (1920, 42304), (1983, 40960), (2048, 39660), (2560, 31728), (2644, 30720), (3072, 26440), (3305, 24576), (3840, 21152), (3966, 20480), (4096, 19830), (5120, 15864), (5288, 15360), (6144, 13220), (6610, 12288), (7680, 10576), (7932, 10240), (8192, 9915)]