211079375

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{313}}^1$

素因数の和:429

約数の個数: 40

約数和(自身を含む): 288395184

約数和(自身を除く): 77315809

約数列:

[1, 5, 13, 25, 65, 83, 125, 313, 325, 415, 625, 1079, 1565, 1625, 2075, 4069, 5395, 7825, 8125, 10375, 20345, 25979, 26975, 39125, 51875, 101725, 129895, 134875, 195625, 337727, 508625, 649475, 674375, 1688635, 2543125, 3247375, 8443175, 16236875, 42215875, 211079375]

約数ペア:

[(1, 211079375), (5, 42215875), (13, 16236875), (25, 8443175), (65, 3247375), (83, 2543125), (125, 1688635), (313, 674375), (325, 649475), (415, 508625), (625, 337727), (1079, 195625), (1565, 134875), (1625, 129895), (2075, 101725), (4069, 51875), (5395, 39125), (7825, 26975), (8125, 25979), (10375, 20345)]