681918718

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{431}}^1$

素因数の和:641

約数の個数: 48

約数和(自身を含む): 1153585152

約数和(自身を除く): 471666434

約数列:

[1, 2, 13, 26, 31, 62, 151, 169, 302, 338, 403, 431, 806, 862, 1963, 3926, 4681, 5239, 5603, 9362, 10478, 11206, 13361, 25519, 26722, 51038, 60853, 65081, 72839, 121706, 130162, 145678, 173693, 347386, 791089, 846053, 1582178, 1692106, 2017511, 2258009, 4035022, 4516018, 10998689, 21997378, 26227643, 52455286, 340959359, 681918718]

約数ペア:

[(1, 681918718), (2, 340959359), (13, 52455286), (26, 26227643), (31, 21997378), (62, 10998689), (151, 4516018), (169, 4035022), (302, 2258009), (338, 2017511), (403, 1692106), (431, 1582178), (806, 846053), (862, 791089), (1963, 347386), (3926, 173693), (4681, 145678), (5239, 130162), (5603, 121706), (9362, 72839), (10478, 65081), (11206, 60853), (13361, 51038), (25519, 26722)]