81315840

素因数分解:

$2^{11}\times 3^1\times 5^1\times {\mathrm{2647}}^1$

素因数の和:2677

約数の個数: 96

約数和(自身を含む): 260245440

約数和(自身を除く): 178929600

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, 2647, 3072, 3840, 5120, 5294, 6144, 7680, 7941, 10240, 10588, 13235, 15360, 15882, 21176, 26470, 30720, 31764, 39705, 42352, 52940, 63528, 79410, 84704, 105880, 127056, 158820, 169408, 211760, 254112, 317640, 338816, 423520, 508224, 635280, 677632, 847040, 1016448, 1270560, 1355264, 1694080, 2032896, 2541120, 2710528, 3388160, 4065792, 5082240, 5421056, 6776320, 8131584, 10164480, 13552640, 16263168, 20328960, 27105280, 40657920, 81315840]

約数ペア:

[(1, 81315840), (2, 40657920), (3, 27105280), (4, 20328960), (5, 16263168), (6, 13552640), (8, 10164480), (10, 8131584), (12, 6776320), (15, 5421056), (16, 5082240), (20, 4065792), (24, 3388160), (30, 2710528), (32, 2541120), (40, 2032896), (48, 1694080), (60, 1355264), (64, 1270560), (80, 1016448), (96, 847040), (120, 677632), (128, 635280), (160, 508224), (192, 423520), (240, 338816), (256, 317640), (320, 254112), (384, 211760), (480, 169408), (512, 158820), (640, 127056), (768, 105880), (960, 84704), (1024, 79410), (1280, 63528), (1536, 52940), (1920, 42352), (2048, 39705), (2560, 31764), (2647, 30720), (3072, 26470), (3840, 21176), (5120, 15882), (5294, 15360), (6144, 13235), (7680, 10588), (7941, 10240)]