72985340

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{313}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 156673440

約数和(自身を除く): 83688100

約数列:

[1, 2, 4, 5, 10, 20, 89, 131, 178, 262, 313, 356, 445, 524, 626, 655, 890, 1252, 1310, 1565, 1780, 2620, 3130, 6260, 11659, 23318, 27857, 41003, 46636, 55714, 58295, 82006, 111428, 116590, 139285, 164012, 205015, 233180, 278570, 410030, 557140, 820060, 3649267, 7298534, 14597068, 18246335, 36492670, 72985340]

約数ペア:

[(1, 72985340), (2, 36492670), (4, 18246335), (5, 14597068), (10, 7298534), (20, 3649267), (89, 820060), (131, 557140), (178, 410030), (262, 278570), (313, 233180), (356, 205015), (445, 164012), (524, 139285), (626, 116590), (655, 111428), (890, 82006), (1252, 58295), (1310, 55714), (1565, 46636), (1780, 41003), (2620, 27857), (3130, 23318), (6260, 11659)]