28980070

素因数分解:

$2^1\times 5^1\times 7^4\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:123

約数の個数: 80

約数和(自身を含む): 65341728

約数和(自身を除く): 36361658

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 49, 70, 71, 85, 98, 119, 142, 170, 238, 245, 343, 355, 490, 497, 595, 686, 710, 833, 994, 1190, 1207, 1666, 1715, 2401, 2414, 2485, 3430, 3479, 4165, 4802, 4970, 5831, 6035, 6958, 8330, 8449, 11662, 12005, 12070, 16898, 17395, 24010, 24353, 29155, 34790, 40817, 42245, 48706, 58310, 59143, 81634, 84490, 118286, 121765, 170471, 204085, 243530, 295715, 340942, 408170, 414001, 591430, 828002, 852355, 1704710, 2070005, 2898007, 4140010, 5796014, 14490035, 28980070]

約数ペア:

[(1, 28980070), (2, 14490035), (5, 5796014), (7, 4140010), (10, 2898007), (14, 2070005), (17, 1704710), (34, 852355), (35, 828002), (49, 591430), (70, 414001), (71, 408170), (85, 340942), (98, 295715), (119, 243530), (142, 204085), (170, 170471), (238, 121765), (245, 118286), (343, 84490), (355, 81634), (490, 59143), (497, 58310), (595, 48706), (686, 42245), (710, 40817), (833, 34790), (994, 29155), (1190, 24353), (1207, 24010), (1666, 17395), (1715, 16898), (2401, 12070), (2414, 12005), (2485, 11662), (3430, 8449), (3479, 8330), (4165, 6958), (4802, 6035), (4970, 5831)]