20700050

素因数分解:

$2^1\times 5^2\times 7^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:121

約数の個数: 96

約数和(自身を含む): 48211200

約数和(自身を除く): 27511150

約数列:

[1, 2, 5, 7, 10, 14, 17, 25, 34, 35, 49, 50, 70, 71, 85, 98, 119, 142, 170, 175, 238, 245, 343, 350, 355, 425, 490, 497, 595, 686, 710, 833, 850, 994, 1190, 1207, 1225, 1666, 1715, 1775, 2414, 2450, 2485, 2975, 3430, 3479, 3550, 4165, 4970, 5831, 5950, 6035, 6958, 8330, 8449, 8575, 11662, 12070, 12425, 16898, 17150, 17395, 20825, 24353, 24850, 29155, 30175, 34790, 41650, 42245, 48706, 58310, 59143, 60350, 84490, 86975, 118286, 121765, 145775, 173950, 211225, 243530, 291550, 295715, 414001, 422450, 591430, 608825, 828002, 1217650, 1478575, 2070005, 2957150, 4140010, 10350025, 20700050]

約数ペア:

[(1, 20700050), (2, 10350025), (5, 4140010), (7, 2957150), (10, 2070005), (14, 1478575), (17, 1217650), (25, 828002), (34, 608825), (35, 591430), (49, 422450), (50, 414001), (70, 295715), (71, 291550), (85, 243530), (98, 211225), (119, 173950), (142, 145775), (170, 121765), (175, 118286), (238, 86975), (245, 84490), (343, 60350), (350, 59143), (355, 58310), (425, 48706), (490, 42245), (497, 41650), (595, 34790), (686, 30175), (710, 29155), (833, 24850), (850, 24353), (994, 20825), (1190, 17395), (1207, 17150), (1225, 16898), (1666, 12425), (1715, 12070), (1775, 11662), (2414, 8575), (2450, 8449), (2485, 8330), (2975, 6958), (3430, 6035), (3479, 5950), (3550, 5831), (4165, 4970)]