138917940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{47251}}^1$

素因数の和:47277

約数の個数: 72

約数和(自身を含む): 452485152

約数和(自身を除く): 313567212

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 47251, 94502, 141753, 189004, 236255, 283506, 330757, 472510, 567012, 661514, 708765, 945020, 992271, 1323028, 1417530, 1653785, 1984542, 2315299, 2835060, 3307570, 3969084, 4630598, 4961355, 6615140, 6945897, 9261196, 9922710, 11576495, 13891794, 19845420, 23152990, 27783588, 34729485, 46305980, 69458970, 138917940]

約数ペア:

[(1, 138917940), (2, 69458970), (3, 46305980), (4, 34729485), (5, 27783588), (6, 23152990), (7, 19845420), (10, 13891794), (12, 11576495), (14, 9922710), (15, 9261196), (20, 6945897), (21, 6615140), (28, 4961355), (30, 4630598), (35, 3969084), (42, 3307570), (49, 2835060), (60, 2315299), (70, 1984542), (84, 1653785), (98, 1417530), (105, 1323028), (140, 992271), (147, 945020), (196, 708765), (210, 661514), (245, 567012), (294, 472510), (420, 330757), (490, 283506), (588, 236255), (735, 189004), (980, 141753), (1470, 94502), (2940, 47251)]