16528640

素因数分解:

$2^8\times 5^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:407

約数の個数: 72

約数和(自身を含む): 40777800

約数和(自身を除く): 24249160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 256, 296, 320, 349, 370, 592, 640, 698, 740, 1184, 1280, 1396, 1480, 1745, 2368, 2792, 2960, 3490, 4736, 5584, 5920, 6980, 9472, 11168, 11840, 12913, 13960, 22336, 23680, 25826, 27920, 44672, 47360, 51652, 55840, 64565, 89344, 103304, 111680, 129130, 206608, 223360, 258260, 413216, 446720, 516520, 826432, 1033040, 1652864, 2066080, 3305728, 4132160, 8264320, 16528640]

約数ペア:

[(1, 16528640), (2, 8264320), (4, 4132160), (5, 3305728), (8, 2066080), (10, 1652864), (16, 1033040), (20, 826432), (32, 516520), (37, 446720), (40, 413216), (64, 258260), (74, 223360), (80, 206608), (128, 129130), (148, 111680), (160, 103304), (185, 89344), (256, 64565), (296, 55840), (320, 51652), (349, 47360), (370, 44672), (592, 27920), (640, 25826), (698, 23680), (740, 22336), (1184, 13960), (1280, 12913), (1396, 11840), (1480, 11168), (1745, 9472), (2368, 6980), (2792, 5920), (2960, 5584), (3490, 4736)]