42690440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1549}}^1$

素因数の和:1626

約数の個数: 64

約数和(自身を含む): 105462000

約数和(自身を除く): 62771560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 104, 106, 130, 212, 260, 265, 424, 520, 530, 689, 1060, 1378, 1549, 2120, 2756, 3098, 3445, 5512, 6196, 6890, 7745, 12392, 13780, 15490, 20137, 27560, 30980, 40274, 61960, 80548, 82097, 100685, 161096, 164194, 201370, 328388, 402740, 410485, 656776, 805480, 820970, 1067261, 1641940, 2134522, 3283880, 4269044, 5336305, 8538088, 10672610, 21345220, 42690440]

約数ペア:

[(1, 42690440), (2, 21345220), (4, 10672610), (5, 8538088), (8, 5336305), (10, 4269044), (13, 3283880), (20, 2134522), (26, 1641940), (40, 1067261), (52, 820970), (53, 805480), (65, 656776), (104, 410485), (106, 402740), (130, 328388), (212, 201370), (260, 164194), (265, 161096), (424, 100685), (520, 82097), (530, 80548), (689, 61960), (1060, 40274), (1378, 30980), (1549, 27560), (2120, 20137), (2756, 15490), (3098, 13780), (3445, 12392), (5512, 7745), (6196, 6890)]