200906875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:425

約数の個数: 40

約数和(自身を含む): 274662080

約数和(自身を除く): 73755205

約数列:

[1, 5, 13, 25, 65, 79, 125, 313, 325, 395, 625, 1027, 1565, 1625, 1975, 4069, 5135, 7825, 8125, 9875, 20345, 24727, 25675, 39125, 49375, 101725, 123635, 128375, 195625, 321451, 508625, 618175, 641875, 1607255, 2543125, 3090875, 8036275, 15454375, 40181375, 200906875]

約数ペア:

[(1, 200906875), (5, 40181375), (13, 15454375), (25, 8036275), (65, 3090875), (79, 2543125), (125, 1607255), (313, 641875), (325, 618175), (395, 508625), (625, 321451), (1027, 195625), (1565, 128375), (1625, 123635), (1975, 101725), (4069, 49375), (5135, 39125), (7825, 25675), (8125, 24727), (9875, 20345)]