20324650

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:279

約数の個数: 48

約数和(自身を含む): 39774240

約数和(自身を除く): 19449590

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 107, 131, 145, 214, 262, 290, 535, 655, 725, 1070, 1310, 1450, 2675, 3103, 3275, 3799, 5350, 6206, 6550, 7598, 14017, 15515, 18995, 28034, 31030, 37990, 70085, 77575, 94975, 140170, 155150, 189950, 350425, 406493, 700850, 812986, 2032465, 4064930, 10162325, 20324650]

約数ペア:

[(1, 20324650), (2, 10162325), (5, 4064930), (10, 2032465), (25, 812986), (29, 700850), (50, 406493), (58, 350425), (107, 189950), (131, 155150), (145, 140170), (214, 94975), (262, 77575), (290, 70085), (535, 37990), (655, 31030), (725, 28034), (1070, 18995), (1310, 15515), (1450, 14017), (2675, 7598), (3103, 6550), (3275, 6206), (3799, 5350)]