160642000

素因数分解:

$2^4\times 5^3\times {\mathrm{31}}^1\times {\mathrm{2591}}^1$

素因数の和:2645

約数の個数: 80

約数和(自身を含む): 401117184

約数和(自身を除く): 240475184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 125, 155, 200, 248, 250, 310, 400, 496, 500, 620, 775, 1000, 1240, 1550, 2000, 2480, 2591, 3100, 3875, 5182, 6200, 7750, 10364, 12400, 12955, 15500, 20728, 25910, 31000, 41456, 51820, 62000, 64775, 80321, 103640, 129550, 160642, 207280, 259100, 321284, 323875, 401605, 518200, 642568, 647750, 803210, 1036400, 1285136, 1295500, 1606420, 2008025, 2591000, 3212840, 4016050, 5182000, 6425680, 8032100, 10040125, 16064200, 20080250, 32128400, 40160500, 80321000, 160642000]

約数ペア:

[(1, 160642000), (2, 80321000), (4, 40160500), (5, 32128400), (8, 20080250), (10, 16064200), (16, 10040125), (20, 8032100), (25, 6425680), (31, 5182000), (40, 4016050), (50, 3212840), (62, 2591000), (80, 2008025), (100, 1606420), (124, 1295500), (125, 1285136), (155, 1036400), (200, 803210), (248, 647750), (250, 642568), (310, 518200), (400, 401605), (496, 323875), (500, 321284), (620, 259100), (775, 207280), (1000, 160642), (1240, 129550), (1550, 103640), (2000, 80321), (2480, 64775), (2591, 62000), (3100, 51820), (3875, 41456), (5182, 31000), (6200, 25910), (7750, 20728), (10364, 15500), (12400, 12955)]