20853662050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{34759}}^1$

素因数の和:34868

約数の個数: 72

約数和(自身を含む): 42593791680

約数和(自身を除く): 21740129630

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 71, 130, 142, 169, 325, 338, 355, 650, 710, 845, 923, 1690, 1775, 1846, 3550, 4225, 4615, 8450, 9230, 11999, 23075, 23998, 34759, 46150, 59995, 69518, 119990, 173795, 299975, 347590, 451867, 599950, 868975, 903734, 1737950, 2259335, 2467889, 4518670, 4935778, 5874271, 11296675, 11748542, 12339445, 22593350, 24678890, 29371355, 32082557, 58742710, 61697225, 64165114, 123394450, 146856775, 160412785, 293713550, 320825570, 417073241, 802063925, 834146482, 1604127850, 2085366205, 4170732410, 10426831025, 20853662050]

約数ペア:

[(1, 20853662050), (2, 10426831025), (5, 4170732410), (10, 2085366205), (13, 1604127850), (25, 834146482), (26, 802063925), (50, 417073241), (65, 320825570), (71, 293713550), (130, 160412785), (142, 146856775), (169, 123394450), (325, 64165114), (338, 61697225), (355, 58742710), (650, 32082557), (710, 29371355), (845, 24678890), (923, 22593350), (1690, 12339445), (1775, 11748542), (1846, 11296675), (3550, 5874271), (4225, 4935778), (4615, 4518670), (8450, 2467889), (9230, 2259335), (11999, 1737950), (23075, 903734), (23998, 868975), (34759, 599950), (46150, 451867), (59995, 347590), (69518, 299975), (119990, 173795)]