40972720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1$

素因数の和:718

約数の個数: 80

約数和(自身を含む): 103171968

約数和(自身を除く): 62199248

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 47, 68, 80, 85, 94, 136, 170, 188, 235, 272, 340, 376, 470, 641, 680, 752, 799, 940, 1282, 1360, 1598, 1880, 2564, 3196, 3205, 3760, 3995, 5128, 6392, 6410, 7990, 10256, 10897, 12784, 12820, 15980, 21794, 25640, 30127, 31960, 43588, 51280, 54485, 60254, 63920, 87176, 108970, 120508, 150635, 174352, 217940, 241016, 301270, 435880, 482032, 512159, 602540, 871760, 1024318, 1205080, 2048636, 2410160, 2560795, 4097272, 5121590, 8194544, 10243180, 20486360, 40972720]

約数ペア:

[(1, 40972720), (2, 20486360), (4, 10243180), (5, 8194544), (8, 5121590), (10, 4097272), (16, 2560795), (17, 2410160), (20, 2048636), (34, 1205080), (40, 1024318), (47, 871760), (68, 602540), (80, 512159), (85, 482032), (94, 435880), (136, 301270), (170, 241016), (188, 217940), (235, 174352), (272, 150635), (340, 120508), (376, 108970), (470, 87176), (641, 63920), (680, 60254), (752, 54485), (799, 51280), (940, 43588), (1282, 31960), (1360, 30127), (1598, 25640), (1880, 21794), (2564, 15980), (3196, 12820), (3205, 12784), (3760, 10897), (3995, 10256), (5128, 7990), (6392, 6410)]