123465040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1889}}^1$

素因数の和:1964

約数の個数: 80

約数和(自身を含む): 309355200

約数和(自身を除く): 185890160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 43, 76, 80, 86, 95, 152, 172, 190, 215, 304, 344, 380, 430, 688, 760, 817, 860, 1520, 1634, 1720, 1889, 3268, 3440, 3778, 4085, 6536, 7556, 8170, 9445, 13072, 15112, 16340, 18890, 30224, 32680, 35891, 37780, 65360, 71782, 75560, 81227, 143564, 151120, 162454, 179455, 287128, 324908, 358910, 406135, 574256, 649816, 717820, 812270, 1299632, 1435640, 1543313, 1624540, 2871280, 3086626, 3249080, 6173252, 6498160, 7716565, 12346504, 15433130, 24693008, 30866260, 61732520, 123465040]

約数ペア:

[(1, 123465040), (2, 61732520), (4, 30866260), (5, 24693008), (8, 15433130), (10, 12346504), (16, 7716565), (19, 6498160), (20, 6173252), (38, 3249080), (40, 3086626), (43, 2871280), (76, 1624540), (80, 1543313), (86, 1435640), (95, 1299632), (152, 812270), (172, 717820), (190, 649816), (215, 574256), (304, 406135), (344, 358910), (380, 324908), (430, 287128), (688, 179455), (760, 162454), (817, 151120), (860, 143564), (1520, 81227), (1634, 75560), (1720, 71782), (1889, 65360), (3268, 37780), (3440, 35891), (3778, 32680), (4085, 30224), (6536, 18890), (7556, 16340), (8170, 15112), (9445, 13072)]