748440140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{20327}}^1$

素因数の和:20606

約数の個数: 48

約数和(自身を含む): 1803174912

約数和(自身を除く): 1054734772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 263, 526, 1052, 1315, 1841, 2630, 3682, 5260, 7364, 9205, 18410, 20327, 36820, 40654, 81308, 101635, 142289, 203270, 284578, 406540, 569156, 711445, 1422890, 2845780, 5346001, 10692002, 21384004, 26730005, 37422007, 53460010, 74844014, 106920020, 149688028, 187110035, 374220070, 748440140]

約数ペア:

[(1, 748440140), (2, 374220070), (4, 187110035), (5, 149688028), (7, 106920020), (10, 74844014), (14, 53460010), (20, 37422007), (28, 26730005), (35, 21384004), (70, 10692002), (140, 5346001), (263, 2845780), (526, 1422890), (1052, 711445), (1315, 569156), (1841, 406540), (2630, 284578), (3682, 203270), (5260, 142289), (7364, 101635), (9205, 81308), (18410, 40654), (20327, 36820)]