80644640

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:346

約数の個数: 96

約数和(自身を含む): 200309760

約数和(自身を除く): 119665120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 71, 80, 124, 142, 155, 160, 229, 248, 284, 310, 355, 458, 496, 568, 620, 710, 916, 992, 1136, 1145, 1240, 1420, 1832, 2201, 2272, 2290, 2480, 2840, 3664, 4402, 4580, 4960, 5680, 7099, 7328, 8804, 9160, 11005, 11360, 14198, 16259, 17608, 18320, 22010, 28396, 32518, 35216, 35495, 36640, 44020, 56792, 65036, 70432, 70990, 81295, 88040, 113584, 130072, 141980, 162590, 176080, 227168, 260144, 283960, 325180, 352160, 504029, 520288, 567920, 650360, 1008058, 1135840, 1300720, 2016116, 2520145, 2601440, 4032232, 5040290, 8064464, 10080580, 16128928, 20161160, 40322320, 80644640]

約数ペア:

[(1, 80644640), (2, 40322320), (4, 20161160), (5, 16128928), (8, 10080580), (10, 8064464), (16, 5040290), (20, 4032232), (31, 2601440), (32, 2520145), (40, 2016116), (62, 1300720), (71, 1135840), (80, 1008058), (124, 650360), (142, 567920), (155, 520288), (160, 504029), (229, 352160), (248, 325180), (284, 283960), (310, 260144), (355, 227168), (458, 176080), (496, 162590), (568, 141980), (620, 130072), (710, 113584), (916, 88040), (992, 81295), (1136, 70990), (1145, 70432), (1240, 65036), (1420, 56792), (1832, 44020), (2201, 36640), (2272, 35495), (2290, 35216), (2480, 32518), (2840, 28396), (3664, 22010), (4402, 18320), (4580, 17608), (4960, 16259), (5680, 14198), (7099, 11360), (7328, 11005), (8804, 9160)]