72125840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:400

約数の個数: 80

約数和(自身を含む): 175226880

約数和(自身を除く): 103101040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 127, 155, 229, 248, 254, 310, 458, 496, 508, 620, 635, 916, 1016, 1145, 1240, 1270, 1832, 2032, 2290, 2480, 2540, 3664, 3937, 4580, 5080, 7099, 7874, 9160, 10160, 14198, 15748, 18320, 19685, 28396, 29083, 31496, 35495, 39370, 56792, 58166, 62992, 70990, 78740, 113584, 116332, 141980, 145415, 157480, 232664, 283960, 290830, 314960, 465328, 567920, 581660, 901573, 1163320, 1803146, 2326640, 3606292, 4507865, 7212584, 9015730, 14425168, 18031460, 36062920, 72125840]

約数ペア:

[(1, 72125840), (2, 36062920), (4, 18031460), (5, 14425168), (8, 9015730), (10, 7212584), (16, 4507865), (20, 3606292), (31, 2326640), (40, 1803146), (62, 1163320), (80, 901573), (124, 581660), (127, 567920), (155, 465328), (229, 314960), (248, 290830), (254, 283960), (310, 232664), (458, 157480), (496, 145415), (508, 141980), (620, 116332), (635, 113584), (916, 78740), (1016, 70990), (1145, 62992), (1240, 58166), (1270, 56792), (1832, 39370), (2032, 35495), (2290, 31496), (2480, 29083), (2540, 28396), (3664, 19685), (3937, 18320), (4580, 15748), (5080, 14198), (7099, 10160), (7874, 9160)]