40542720

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{5279}}^1$

素因数の和:5305

約数の個数: 80

約数和(自身を含む): 129634560

約数和(自身を除く): 89091840

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, 1280, 1536, 1920, 2560, 3840, 5279, 7680, 10558, 15837, 21116, 26395, 31674, 42232, 52790, 63348, 79185, 84464, 105580, 126696, 158370, 168928, 211160, 253392, 316740, 337856, 422320, 506784, 633480, 675712, 844640, 1013568, 1266960, 1351424, 1689280, 2027136, 2533920, 2702848, 3378560, 4054272, 5067840, 6757120, 8108544, 10135680, 13514240, 20271360, 40542720]

約数ペア:

[(1, 40542720), (2, 20271360), (3, 13514240), (4, 10135680), (5, 8108544), (6, 6757120), (8, 5067840), (10, 4054272), (12, 3378560), (15, 2702848), (16, 2533920), (20, 2027136), (24, 1689280), (30, 1351424), (32, 1266960), (40, 1013568), (48, 844640), (60, 675712), (64, 633480), (80, 506784), (96, 422320), (120, 337856), (128, 316740), (160, 253392), (192, 211160), (240, 168928), (256, 158370), (320, 126696), (384, 105580), (480, 84464), (512, 79185), (640, 63348), (768, 52790), (960, 42232), (1280, 31674), (1536, 26395), (1920, 21116), (2560, 15837), (3840, 10558), (5279, 7680)]