40824320

素因数分解:

$2^9\times 5^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:491

約数の個数: 80

約数和(自身を含む): 100761408

約数和(自身を除く): 59937088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 256, 296, 320, 370, 431, 512, 592, 640, 740, 862, 1184, 1280, 1480, 1724, 2155, 2368, 2560, 2960, 3448, 4310, 4736, 5920, 6896, 8620, 9472, 11840, 13792, 15947, 17240, 18944, 23680, 27584, 31894, 34480, 47360, 55168, 63788, 68960, 79735, 94720, 110336, 127576, 137920, 159470, 220672, 255152, 275840, 318940, 510304, 551680, 637880, 1020608, 1103360, 1275760, 2041216, 2551520, 4082432, 5103040, 8164864, 10206080, 20412160, 40824320]

約数ペア:

[(1, 40824320), (2, 20412160), (4, 10206080), (5, 8164864), (8, 5103040), (10, 4082432), (16, 2551520), (20, 2041216), (32, 1275760), (37, 1103360), (40, 1020608), (64, 637880), (74, 551680), (80, 510304), (128, 318940), (148, 275840), (160, 255152), (185, 220672), (256, 159470), (296, 137920), (320, 127576), (370, 110336), (431, 94720), (512, 79735), (592, 68960), (640, 63788), (740, 55168), (862, 47360), (1184, 34480), (1280, 31894), (1480, 27584), (1724, 23680), (2155, 18944), (2368, 17240), (2560, 15947), (2960, 13792), (3448, 11840), (4310, 9472), (4736, 8620), (5920, 6896)]