51626540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{739}}^1$

素因数の和:1254

約数の個数: 48

約数和(自身を含む): 124320000

約数和(自身を除く): 72693460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 499, 739, 998, 1478, 1996, 2495, 2956, 3493, 3695, 4990, 5173, 6986, 7390, 9980, 10346, 13972, 14780, 17465, 20692, 25865, 34930, 51730, 69860, 103460, 368761, 737522, 1475044, 1843805, 2581327, 3687610, 5162654, 7375220, 10325308, 12906635, 25813270, 51626540]

約数ペア:

[(1, 51626540), (2, 25813270), (4, 12906635), (5, 10325308), (7, 7375220), (10, 5162654), (14, 3687610), (20, 2581327), (28, 1843805), (35, 1475044), (70, 737522), (140, 368761), (499, 103460), (739, 69860), (998, 51730), (1478, 34930), (1996, 25865), (2495, 20692), (2956, 17465), (3493, 14780), (3695, 13972), (4990, 10346), (5173, 9980), (6986, 7390)]